PIX 7.1 amp (2) IPSEC

I recently updated my 515E with 7.1 (2), when I noticed, in the documentation, a new feature called 'inspect ipsec-passthrough ". I tried different ways of activating this feature with no joy.

Can someone help to get this feature is enabled.

Thank you Paul

After a serious look and control test

Is supported only on pix721.bin, so you may need to upgrade to it.

See the below.

ULHAMFC (config) # policy-map type to inspect?

set up the mode commands/options:

DCERPC set up a political map of the DCERPC type

DNS set up a card type DNS policy

ESMTP set up a political map of the ESMTP type

FTP set up a card type FTP policy

GTP set up a political map of the GTP type

H323 set up a political map of the H.323 type

http set up a political map of the type HTTP

IM setting up a political map of the type IM

IPSec-pass-thru sets up a political map of the IPSEC-PASS-THRU type

MGCP configure a policy with the MGCP map

NetBIOS set up a political map of the NETBIOS type

RADIUS account management set up a card type Radius account management policy

Configure a SIP to SIP type political map

Skinny set up a political map of the Skinny type

Hope this helps.

Concerning

Tags: Cisco Security

Similar Questions

Opening of port (s) IPSec on perimeter router

I currently have a PIX515E session behind a perimeter. This perimeter is connected to the Internet. It has configured ACL security. I want to do is use the PIX as a VPN endpoint and so need to open some ports on the perimeter router numbers to reach the PIX. I would use IPSec running mainly between the NCP and the PIX, but have no idea what to do with the ACL on the router. It's I would say "ip permit any fw - PIX" or should I say "permit tcp PIX - fw" Can anyone help with the port number is possible. Thank you.

You must enable the following ports.

ISAKMP - UDP 500

IPSEC - ESP (Protocol)

access-list 101 permit udp any host eq 500

access-list 101 permit esp any host

The VPN client VPN connection behind other PIX PIX

I have the following problem:

I wanted to establish the VPN connection the client VPN to PIX on GPRS / 3G, but I didn t have a bit of luck with PIX IOS version 6.2 (2).

So I upgraded PIX to 6.3 (4) to use NAT - T and VPN client to version 4.0.5

I have configured PIX with NAT-T(isakmp nat-traversal 20), but I still had a chance, he would not go through the 1st phase. As soon as I took nat-traversal isakmp off he started working, and we can connect to our servers.

Now, I want to connect to the VPN client behind PIX to our customer PIX network. VPN connection implements without problem, but we can not access the servers. If I configure NAT - T on the two PIX, or only on the customer PIX or only on our PIX, no VPN connection at all.

If I have to connect VPN client behind PIX to the customer's network and you try to PING DNS server for example, on our PIX, I have following error:

305006: failed to create of portmap for domestic 50 CBC protocol translation: dst outside:194.x.x.x 10.10.1.x

194.x.x.x is our customer s address IP PIX

I understand that somewhere access list is missing, but I can not understand.

Of course, I can configure VPN site to site, but we have few customers and take us over their servers, so it'd just connect behind PIX VPN and client connection s server, instead of the first dial-in and then establish a VPN connection.

Can you please help me?

Thank you in advan

The following is extracted from ASK THE DISCUSSION FORUM of EXPERTS with Glenn Fullage of Cisco.

I've cut and pasted here for you to read, I think that the problem mentioned below:

Question:

Hi Glenn,.

Following is possible?

I have the vpn client on my PC, my LAN is protected by a pix. I can launch the vpn client to connect to remote pix. Authenticates the vpn client and the remote pix makes my PC with the assigned ip appropriate to its pool of ip address.

The problem that I am facing is that I can not anything across the pix remote ping from my PC which is behind my pix. Can you please guide me what I have to do to make this work, if it is possible?

My PC has a static ip address assigned with the default gateway appropriate pointing to my s pix inside interface.

Thank you very much for any help provided in advance.

Response from Glenn:

First of all, make sure that the VPN connection works correctly when the remote PC is NOT behind a PIX. If that works fine, but then breaks when put behind a PIX, it is probably that the PIX is PAT, which usually breaks IPSec. Add the following command on your PIX VPN client is behind:

fixup protocol esp-ike

See http://www.cisco.com/univercd/cc/td/doc/product/iaabu/pix/pix_sw/v_63/cmdref/df.htm#wp1067379 for more details.

If it still has issues, you can turn on NAT - T on the remote PIX that ends the VPN, the client and the remote PIX must encapsulate then all IPSec in UDP packets that your PIX will be able to PA correctly. Add the following command on the remote PIX:

ISAKMP nat-traversal

See http://www.cisco.com/univercd/cc/td/doc/product/iaabu/pix/pix_sw/v_63/cmdref/gl.htm#wp1027312 for more details.

NAT - T is a standard for the encapsulation of the UDP packets inot IETF IPSec packets.

ESP IPSec (Protocol that use your encrypted data packets) is an IP Protocol, it is located just above IP, rather than being a TCP or UDP protocol. For this reason, it has no TCP/UDP port number.

A lot of features that make the translation of address of Port (PAT) rely on a single to PAT TCP/UDP source port number ' ing. Because all traffic is PAT would be at the same source address, must be certain uniqueness to each of its sessions, and most devices use the port number TCP/UDP source for this. Because IPSec doesn't have one, many features PAT fail to PAT it properly or at all, and the data transfer fails.

NAT - T is enabled on both devices of the range, they will determine during the construction of the tunnel there is a PAT/NAT device between them, and if they detect that there is, they automatically encapsulate every IPSec packets in UDP packets with a port number of 4500. Because there is now a port number, PAT devices are able to PAT it correctly and the traffic goes normally.

Hope that helps.

Using VPN Client coming out behind a PIX

As I understand it, a PIX can operate as a VPN endpoint for IPsec tunnels, or allow IPsec traffic to pass to the other endpoints behind him; My PIX is an end point, but there are a few users who wish to use the VPN Client to connect to outside points beyond the firewall.

Is it possible to configure a PIX to two pass through IPsec traffic AND be an endpoint?

On a related note, two customer software VPN hosts can connect to each other?

Thank you

Marc

My pix company does exactly what you posted, there is lan - lan vpn, and we again establish vpn to other companies via a software vpn client.

concerning the transmission of described video, it should not need additional acl or configuration assuming that there is no acl on the pix. a question must be noticed is that the other end (i.e. the end point of the remote vpn client) needs to nat-traversal since the local pix usually perform nat/pat.

However, the vpn directly between two clients is not feasible as its name suggests (they are the two client).

I get the error message on debugging ipsec-l2l tunnel

Hello

Can someone help me understand the debug message?
I get the error message on debugging ipsec-l2l tunnel

I tried to configure an ASA5520 with an ipsec-l2l to ios router 1721

= 1721 router =.

Cisco 1721 (flash: c1700-k9o3sy7 - mz.123 - 2.XC2.bin)
80.89.47.102 outside
inside 10.100.110.1 255.255.255.0

Debug crypto ipsec
Debug crypto ISAKMP

-config-
crypto ISAKMP policy 1
BA 3des
md5 hash
preshared authentication
Group 2
0 1234567890 128.39.189.10 crypto isakmp key address
!
!
Crypto ipsec transform-set esp-3des pix-series
!
ASA 10 ipsec-isakmp crypto map
defined by peer 128.39.189.10
transform-set pix - Set
match address 101
!
!
interface FastEthernet0

Outside-interface description

IP 80.89.47.102 255.255.255.252

NAT outside IP

card crypto asa

!

interface Vlan10
Inside description
IP 10.100.110.1 255.255.255.0
IP nat inside

!

!

IP nat inside source overload map route interface FastEthernet0 sheep

!

access-list 101 permit ip 10.100.110.0 0.0.0.255 10.100.4.0 0.0.3.255

!

access-list 110 deny ip 10.100.110.0 0.0.0.255 10.100.4.0 0.0.3.255
access-list 110 permit ip 10.100.110.0 0.0.0.255 any
!
sheep allowed 10 route map
corresponds to the IP 110
!

= Config ASA =.

Cisco 5520 ASA Version 8.2 (1)
128.39.189.10 outside
inside 10.100.4.255 255.255.252.0

Debug crypto ipsec
Debug crypto ISAKMP

-Config-
!
Allow Access-list extended sheep 255.255.252.0 IP 10.100.4.0 10.100.110.0 255.255.255.0
!
access extensive list ip 10.100.4.0 outside110 allow 255.255.252.0 10.100.110.0 255.255.255.0
!

Crypto ipsec transform-set ESP-3DES-MD5-esp-3des esp-md5-hmac
Crypto ipsec transform-set esp-SHA-ESP-3DES-3des esp-sha-hmac
86400 seconds, duration of life crypto ipsec security association
Crypto ipsec kilobytes of life - safety 4608000 association
card crypto outside_map 11 match address outside110
peer set card crypto outside_map 11 80.89.47.102
card crypto outside_map 11 game of transformation-ESP-3DES-MD5
outside_map interface card crypto outside
crypto ISAKMP allow outside
crypto ISAKMP policy 10
preshared authentication
3des encryption
md5 hash
Group 2
life 86400

!

attributes of Group Policy DfltGrpPolicy
VPN-idle-timeout no
Protocol-tunnel-VPN IPSec

!

tunnel-group 80.89.47.102 type ipsec-l2l
IPSec-attributes tunnel-group 80.89.47.102
pre-shared key 1234567890

Concerning
Tor

You have a transformation defined on the SAA named ESP-3DES-MD5? Your crypto card refers to that but I don't see it listed in the config you have posted. I don't have much experience with routers, but is MD5 hashing algoritm (and why it is not)?

James

PIX 501 for Cisco 3640 VPN router

-Start ciscomoderator note - the following message has been changed to remove potentially sensitive information. Please refrain from publishing confidential information about the site to reduce the risk to the security of your network. -end of the note ciscomoderator-

Have a 501 PIX and Cisco 3640 router. The 3640 is configured for dynamic map for VPN. The PIX 501 is set to pointing to the 3640 router static map. I can establish a tunnel linking the PIX to the router and telnet to a machine AIX on the inside network to the router. When I try to print on the network of the PIX 501 inside it fails.

What Miss me? I added the configuration for the PIX and the router.

Here are the PIX config:

PIX Version 6.1 (1)

ethernet0 nameif outside security0

nameif ethernet1 inside the security100

enable encrypted password xxxxxxxxxxxxxxxx

xxxxxxxxxxxxx encrypted passwd

pixfirewall hostname

fixup protocol ftp 21

fixup protocol http 80

fixup protocol h323 1720

fixup protocol rsh 514

fixup protocol rtsp 554

fixup protocol smtp 25

fixup protocol sqlnet 1521

fixup protocol sip 5060

fixup protocol 2000 skinny

names of

pager lines 24

interface ethernet0 10baset

interface ethernet1 10full

Outside 1500 MTU

Within 1500 MTU

IP address outside dhcp setroute

IP address inside 192.168.1.1 255.255.255.0

alarm action IP verification of information

alarm action attack IP audit

PDM logging 100 information

history of PDM activate

ARP timeout 14400

Global 1 interface (outside)

NAT (inside) 1 0.0.0.0 0.0.0.0 0 0

Timeout xlate 0:05:00

Timeout conn 01:00 half-closed 0: 10:00 udp 0:02:00 CPP 0: h323 from 10:00 0:05:00 sip 0:30:00 sip_media 0:02:00

Timeout, uauth 0:05:00 absolute

GANYMEDE + Protocol Ganymede + AAA-server

RADIUS Protocol RADIUS AAA server

Enable http server

http 192.168.1.0 255.255.255.0 inside

No snmp server location

No snmp Server contact

SNMP-Server Community public

No trap to activate snmp Server

enable floodguard

No sysopt route dnat

Telnet timeout 5

SSH timeout 5

dhcpd address 192.168.1.2 - 192.168.1.33 inside

dhcpd lease 3600

dhcpd ping_timeout 750

dhcpd outside auto_config

dhcpd allow inside

Terminal width 80

Cryptochecksum:XXXXXXXXXXXXXXXXXXX

: end

Here is the router config

Router #sh runn

Building configuration...

Current configuration: 6500 bytes

!

version 12.2

no service button

tcp KeepAlive-component snap-in service

a tcp-KeepAlive-quick service

horodateurs service debug datetime localtime

Log service timestamps datetime localtime

no password encryption service

!

router host name

!

start the flash slot1:c3640 - ik9o3s - mz.122 - 16.bin system

queue logging limit 100

activate the password xxxxxxxxxxxxxxxxx

!

clock TimeZone Central - 6

clock summer-time recurring CENTRAL

IP subnet zero

no ip source route

!

!

no ip domain-lookup

!

no ip bootp Server

inspect the name smtp Internet IP

inspect the name Internet ftp IP

inspect the name Internet tftp IP

inspect the IP udp Internet name

inspect the tcp IP Internet name

inspect the name DMZ smtp IP

inspect the name ftp DMZ IP

inspect the name DMZ tftp IP

inspect the name DMZ udp IP

inspect the name DMZ tcp IP

audit of IP notify Journal

Max-events of po verification IP 100

!

crypto ISAKMP policy 1

BA 3des

preshared authentication

Group 2

!

crypto ISAKMP policy 20

BA 3des

preshared authentication

Group 2

ISAKMP crypto key address x.x.180.133 xxxxxxxxxxx

ISAKMP crypto keys xxxxxxxxxxx address 0.0.0.0 0.0.0.0

!

!

Crypto ipsec transform-set esp-3des esp-sha-hmac vpn test

Crypto ipsec transform-set esp-3des esp-sha-hmac PIXRMT

!

dynamic-map crypto dny - Sai 25

game of transformation-PIXRMT

match static address PIX1

!

!

static-card 10 map ipsec-isakmp crypto

the value of x.x.180.133 peer

the transform-set vpn-test value

match static address of Hunt

!

map ISCMAP 15-isakmp ipsec crypto dynamic dny - isc

!

call the rsvp-sync

!

!

!

controller T1 0/0

framing ESF

linecode b8zs

Slots 1-12 channels-group 0 64 speed

Description controller to the remote frame relay

!

controller T1 0/1

framing ESF

linecode b8zs

Timeslots 1-24 of channel-group 0 64 speed

Description controller for internet link SBIS

!

interface Serial0/0:0

Description CKT ID 14.HXGK.785129 Frame Relay to Remote Sites

bandwidth 768

no ip address

no ip redirection

no ip unreachable

no ip proxy-arp

encapsulation frame-relay

frame-relay lmi-type ansi

!

interface Serial0 / point to point 0:0.17

Description Frame Relay to xxxxxxxxxxx location

IP unnumbered Ethernet1/0

no ip redirection

no ip unreachable

no ip proxy-arp

IP nat inside

No arp frame relay

dlci 17 frame relay interface

!

interface Serial0 / point to point 0:0.18

Description Frame Relay to xxxxxxxxxxx location

IP unnumbered Ethernet1/0

no ip redirection

no ip unreachable

no ip proxy-arp

IP nat inside

No arp frame relay

dlci 18 frame relay interface

!

interface Serial0 / point to point 0:0.19

Description Frame Relay to xxxxxxxxxxx location

IP unnumbered Ethernet1/0

no ip redirection

no ip unreachable

no ip proxy-arp

IP nat inside

No arp frame relay

dlci 19 frame relay interface

!

interface Serial0 / point to point 0:0.20

Description Frame Relay to xxxxxxxxxxxxx location

IP unnumbered Ethernet1/0

no ip redirection

no ip unreachable

no ip proxy-arp

IP nat inside

No arp frame relay

dlci 20 frame relay interface

!

interface Serial0 / point to point 0:0.21

Description Frame Relay to xxxxxxxxxxxx

IP unnumbered Ethernet1/0

no ip redirection

no ip unreachable

no ip proxy-arp

IP nat inside

No arp frame relay

dlci 21 frame relay interface

!

interface Serial0 / point to point 0:0.101

Description Frame Relay to xxxxxxxxxxx

IP unnumbered Ethernet1/0

no ip redirection

no ip unreachable

no ip proxy-arp

IP nat inside

No arp frame relay

dlci 101 frame relay interface

!

interface Serial0/1:0

CKT ID 14.HCGS.785383 T1 to ITT description

bandwidth 1536

IP address x.x.76.14 255.255.255.252

no ip redirection

no ip unreachable

no ip proxy-arp

NAT outside IP

inspect the Internet IP on

no ip route cache

card crypto ISCMAP

!

interface Ethernet1/0

IP 10.1.1.1 255.255.0.0

no ip redirection

no ip unreachable

no ip proxy-arp

IP nat inside

no ip route cache

no ip mroute-cache

Half duplex

!

interface Ethernet2/0

IP 10.100.1.1 255.255.0.0

no ip redirection

no ip unreachable

no ip proxy-arp

IP nat inside

no ip route cache

no ip mroute-cache

Half duplex

!

router RIP

10.0.0.0 network

network 192.168.1.0

!

IP nat inside source list 112 interface Serial0/1: 0 overload

IP nat inside source static tcp 10.1.3.4 443 209.184.71.138 443 extensible

IP nat inside source static tcp 10.1.3.4 9869 209.184.71.138 9869 extensible

IP nat inside source 10.1.3.2 static 209.184.71.140

IP nat inside source static 10.1.3.6 209.184.71.139

IP nat inside source static 10.1.3.8 209.184.71.136

IP nat inside source static tcp 10.1.3.10 80 209.184.71.137 80 extensible

IP classless

IP route 0.0.0.0 0.0.0.0 x.x.76.13

IP route 10.2.0.0 255.255.0.0 Serial0 / 0:0.19

IP route 10.3.0.0 255.255.0.0 Serial0 / 0:0.18

IP route 10.4.0.0 255.255.0.0 Serial0 / 0:0.17

IP route 10.5.0.0 255.255.0.0 Serial0 / 0:0.20

IP route 10.6.0.0 255.255.0.0 Serial0 / 0:0.21

IP route 10.7.0.0 255.255.0.0 Serial0 / 0:0.101

no ip address of the http server

!

!

PIX1 static extended IP access list

IP 10.1.0.0 allow 0.0.255.255 192.168.1.0 0.0.0.255

IP access-list extended hunting-static

IP 10.1.0.0 allow 0.0.255.255 192.168.1.0 0.0.0.255

extended IP access vpn-static list

ip permit 192.168.1.0 0.0.0.255 10.1.0.0 0.0.255.255

IP 192.0.0.0 allow 0.255.255.255 10.1.0.0 0.0.255.255

access-list 1 refuse 10.0.0.0 0.255.255.255

access-list 1 permit one

access-list 12 refuse 10.1.3.2

access-list 12 allow 10.1.0.0 0.0.255.255

access-list 12 allow 10.2.0.0 0.0.255.255

access-list 12 allow 10.3.0.0 0.0.255.255

access-list 12 allow 10.4.0.0 0.0.255.255

access-list 12 allow 10.5.0.0 0.0.255.255

access-list 12 allow 10.6.0.0 0.0.255.255

access-list 12 allow 10.7.0.0 0.0.255.255

access-list 112 deny ip host 10.1.3.2 everything

access-list 112 refuse ip 10.1.0.0 0.0.255.255 192.168.1.0 0.0.0.255

access-list 112 allow ip 10.1.0.0 0.0.255.255 everything

access-list 112 allow ip 10.2.0.0 0.0.255.255 everything

access-list 112 allow ip 10.3.0.0 0.0.255.255 everything

access-list 112 allow ip 10.4.0.0 0.0.255.255 everything

access-list 112 allow ip 10.5.0.0 0.0.255.255 everything

access-list 112 allow ip 10.6.0.0 0.0.255.255 everything

access-list 112 allow ip 10.7.0.0 0.0.255.255 everything

access-list 120 allow ip host 10.100.1.10 10.1.3.7

not run cdp

!

Dial-peer cor custom

!

!

!

!

connection of the banner ^ CCC

******************************************************************

WARNING - Unauthorized USE strictly PROHIBITED!

******************************************************************

^ C

!

Line con 0

line to 0

password xxxxxxxxxxxx

local connection

Modem InOut

StopBits 1

FlowControl hardware

line vty 0 4

exec-timeout 15 0

password xxxxxxxxxxxxxx

opening of session

!

end

Router #.

Add the following to the PIX:

> permitted connection ipsec sysopt

This indicates the PIX around all ACLs for IPsec traffic. Now that your IPSec traffic is still subject to the standard rules of PIX, so launched inside the traffic is allowed to go in, but off-initiated traffic is not.

QOS with IPSEC

Hello

I have the following configuration:

PC/IPPHONE - PIX - RTR/T1 - INTERNET

|---IPSEC-----------------

I'm trying to rank the voice package in the IPSEC tunnel so that I can do LLQ on RTR. Is there a way to copy the original packet DSCP tag in the header of the IPSEC packet?

Or is there a better way to do it?

Thank you

Peter

Hi Peter,.

the IPSec RFC mandates to copy the TOS byte (including the DSCP) of the original IP header to the newly created IPSec IP header. So the best approach would be to score before encryption and to match on DSCP in the encrypted packets.

If the router itself is the encryption (not quite clear from your drawing), you can use "prior qos sort" on the tunnel plan or crypto. The router then keeps a copy of the packet header original IP associated with the IPSec packet is used to classify the based on the original header. This however can only work in the router doing encryption, because once the IP packet to let the content area cannot be detected (it's the idea of IPSec isn? t it?).

So either prior qos rank or DSCP marking before the encryption would use CBWFQ/LLQ for encrypted VoIP and other applications.

I hope this helps! Please note all messages.

Regards, Martin

Problem of routing in PIX 515E

Hi all

I have a problem here with the routing routing in PIX515E version 6.35. I have a few Client PC located in the DMZ of the PIX515E interface, they connect to the PIX using Cisco VPN Client (IPSEC VPN), once these computers can be routed to access servers (static route) located behind internal PIX interfaces. I have a few servers remotely with access to the Internet, the gateway router to connect remotely to PIX Outside (Internet) Interface using IPSEC VPN and then routed inside the Interface (static route).

After establishing a VPN IPSEC computers Client behind the DMZ interfaces can access servers located behind the internal Interface of a PIX. So do the remote servers. However, the Client computers cannot access remote servers.

I was wondering if there are any restrictions for the delivery in PIX?

Thanks for the reply.

Hello

Thanks for posting, sorry for the late reply, been a little busy!

I'm not to clear on how you route your networks, I personally try to be more specific in what is routed where when the static use of the routes that the large 16s prefixes.

you have vpn l2l to allow remote access within your acl as crypto 172.16.0.199/32 to your server:
Access ip 172.16.0.0 Remote_Server list allow 255.255.0.0 host 172.16.0.199

and also you have cleared nat rule:
NAT (inside) 0 access-list sheep

for the resources of DMZ RA VPN 172.16.45.129 for server access through this VPN L2L wallpaper external interface, you need to activate in your acl L2L Tunnel end as well as for the valuable traffic.

The end has access-list for the tunnel L2L is allowing the network of Client VPN ID?

I would also like to add to your rule exempt Ant configuration on interface dmz as you do with inside interface

NAT 0 access-list sheep (dmz)

Let us know how it works, I'll be back on your config and after some more later.

Concerning

easy vpn mode configuration

I am trying to understand...

I have remote vpn clients to connect to a Pix 515E (outdoors) configure an IPSec tunnel (joining networks inside). This will be my first VPN.

I've seen many examples of configurations it is possible to declare an ip pool to assign to clients vpn ip addresses not on the subnet of the pix inside the ip address (for example pix inside address is 172.16.0.1 and I can create and reference a vpn group a pool as the 192.168.1.0 - 192.168.1.254).

My question is: how, guests will find their way to all networks behind the pix without a default gateway? I know Configuration Mode can assign to vpn clients from many settings (DNS/WINS ecc. ecc.) but impossible to assign a default gateway.

I have a couple of multilayer switch behind pix' inside but how could they transmit packets for vpn clients if they have not any configuration of a default gateway?

Thanks in advance for your help

Customers need a default gateway, they simply use the routing on the PIX and other table later instrument that they get routed through to reach their destination.

Think about what happens, using your IP addresses for example. The VPN client sends a packet encrypted for the PIX, this cover has a source address of 192.168.1.1 because this is the address he was allocated pool. The destination of this package is we will tell, 172.16.10.1, a server inside the PIX. The source address is not looked at anywhere, yet it is only the destination IP that we are interested in right now. So the PIX looks up to its routing table to see where the 172.16.10.1, he sends the inside interface to the next hop, based on its routing table. The next hop looks up where 172.16.10.1, sends it on the next hop based on its routing table. This continues until the package arrives to 172.16.10.1.

Now, the response is returned to 192.168.1.1 (the VPN client), that's where the fun begins. This subnet exists anywhere on your network, it is purely a pool of addresses given by the PIX. This package must be routed to the PIX, then you must add a static on your network route so that whenever the package is, it will find its way to the PIX. It's generally as simple as adding a static route on the router directly connected to the PIX, then redistribute this road in any routing protocol that you are running. When this package for 192.168.1.1 comes to the PIX, the PIX is smart enough to know that it is a VPN client, it encrypts and sends it to the routable address customers everywhere where it is maybe.

In short, yes you can define an IP subnet as your address on the PIX pool, provided that your internal network has a route to this network that eventually points back to the PIX. Nothing else to do, default gateways on the customer come in it.

VPN through NAT

Hello

I configured a PIX (6.3) for (4.0.2) VPN clients. When I try to connect using a dial-up connection, I am able to connect, but using a NAT (through a router) I stay connected but cannot access all the servers. It shows the decryption of zero packets.

Is their something I need to do on PIX? I'm using IPSEC.

Help, please.

NAT, or more precisely of PAT, will usually break an IPSec connection. Fortunately, there is a new standard called NAT - T that has each end detect that they are going through a NAT/PAT device, and if so, they'll wrap everything in UDP packets, which can then be NAT correctly.

The customer has of this feature is automatically enabled. On the PIX to put on with the command:

> isakmp nat-traversal

See http://www.cisco.com/univercd/cc/td/doc/product/iaabu/pix/pix_sw/v_63/cmdref/gl.htm#1027312 for more details.

Connectivity between two site to site VPN

I have two remote sites that each connect to our main office using a site to site VPN. Remote offices have 831 routers. The main office has a PIX 515.

A remote office is 192.168.15.X and the other is 192.168.100.X. The main office is on a 10.X.X.X network.

Each remote office can contact the office with no problems. However, they cannot communicate with each other at all and I need this to work. I just want to be able to access the network 192.168.100.X network 192.168.15.X through the VPN tunnel that is already set up between each remote desktop.

I tried to add the other network to the ACL for the tunnel, but that did not work. I feel I'm missing something simple.

For example, the following ACL initially.

Note access-list 103 IPSec rule

access-list 103 allow ip 192.168.15.0 0.0.0.255 10.0.0.0 0.255.255.255

I added this line to this LIST.

access-list 103 allow ip 192.168.15.0 0.0.0.255 192.168.100.0 0.0.0.255

But that did not help.

Thanks in advance.

Hello

What code are you running on the Pix. Talk to talk IPSEC connectivity is supported only in version 7.0 and higher.

Enhanced support has spoke-to-Spoke VPN

Version 7.0 (1) improving support communications a spoke-to-spoke (customer-to-customer) VPN, providing the ability to traffic to enter and exit the same interface. In addition, remote access to splitting tunnel connections can be completed on the external interface of the security apparatus, enabling traffic destined to the Internet for remote user VPN tunnels to leave on the same interface as it happened (after that the firewall rules have been applied).

The same-security-traffic command permits traffic to enter and exit the same interface when it is used with the keyword a spoke-to-spoke VPN using intra-interface. For more information, see the section "Allows Intra-Interface traffic" in the in the command line Configuration Guide Cisco Security Appliance.

http://www.Cisco.com/univercd/CC/TD/doc/product/iaabu/PIX/pix_sw/v_70/70_rn/pix_70rn.htm#wp162358

Example of Configuration:

http://www.Cisco.com/en/us/partner/products/HW/vpndevc/ps2030/products_configuration_example09186a00804675ac.shtml

Let me know if it helps.

Kind regards

Arul

* Please note all useful messages *.

IPSec over TCP on PIX 501F to the catalog

Hello

Is there a way I can configure IPSec over TCP as default configuration in the PIX firewall. I'm under 6.3

The PIX does not support IPsec over TCP. It doesn't support NAT - T, which is IPSec over UDP/4500, which houses also of the Cisco VPN client. Just add the following command on the PIX:

ISAKMP nat-traversal

The PIX and VPN client auto-négociera if necessary IPSec encapsulation. See http://www.cisco.com/univercd/cc/td/doc/product/iaabu/pix/pix_sw/v_63/cmdref/gl.htm#wp1027312 for more details.

IPSec between an IOS device and a PIX

Hello

I'm not able to successfully establish an IPSec tunnel between an IOS (2600 router) box running 12.3 (9) and PIX501 pixos 6.2 running. I see the following error on 2600.

* 06:09:50.416 Mar 10: ISAKMP (0:1): retransmission phase 1 MM_SA_SETUP...

* 06:09:50.416 Mar 10: ISAKMP (0:1): will increment the error counter on his: broadcast

Phase 1

And on PIX501 following error message:

ISAKMP (0): ITS been pre-shared key, using id ID_IPV4_ADDR type authentication

to return to the State is IKMP_NO_ERROR

crypto_isakmp_process_block: CBC 9.8.1.2, dest 9.2.1.2

Exchange OAK_MM

ISAKMP (0): processing KE payload. Message ID = 0

ISAKMP (0): processing NONCE payload. Message ID = 0

ISAKMP (0): load useful treatment vendor id

ISAKMP (0): load useful treatment vendor id

ISAKMP (0): Peer Remote supports dead peer detection

ISAKMP (0): load useful treatment vendor id

ISAKMP (0): addressing another box of IOS!

ISAKMP (0): load useful treatment vendor id

ISAKMP (0): provider v6 code received xauth

to return to the State is IKMP_ERR_RETRANS

crypto_isakmp_process_block: CBC 9.8.1.2, dest 9.2.1.2

Exchange OAK_MM

I am able to ping the external interface of a box form another. Any idea what I might be missing?

Thanks in advance,

Krishna

The commands that I configured on 2600 as follows:

crypto ISAKMP policy 1

md5 hash

preshared authentication

Group 2

life 1200

cisco key crypto isakmp 9.2.1.2 address

ISAKMP crypto keepalive 50 10

!

life 1800 seconds crypto ipsec security association

!

Crypto ipsec transform-set esp - esp-sha-hmac krishnas

!

!

Krishnas 1 ipsec-isakmp crypto map

defined peer 9.2.1.2

game of transformation-krishnas

match address krishnas

!

!

!

!

interface FastEthernet0/0

IP 192.168.243.1 255.255.255.0

automatic speed

full-duplex

!

interface FastEthernet0/1

Description outside the interface to the cloud

bandwidth 10000

IP 9.8.1.2 255.255.0.0

automatic speed

Half duplex

card crypto krishnas

!

!

krishnas extended IP access list

IP 192.168.243.0 allow 0.0.0.255 192.168.244.0 0.0.0.255

The commands that I configured on PIX501:

IP 192.168.244.0 allow Access-list krishnas 255.255.255.0 192.168.243.0 255.255.255.0

Permitted connection ipsec sysopt

Crypto ipsec transform-set esp - esp-sha-hmac krishnas

Krishnas 1 ipsec-isakmp crypto map

card crypto krishnas 1 corresponds to the krishnas address

krishnas 1 peer set 9.8.1.2 crypto card

card crypto krishnas 1 the transform-set krishnas value

krishnas outside crypto map interface

ISAKMP allows outside

ISAKMP key cisco address 9.8.1.2 netmask 255.255.255.255 No.-xauth No.-config-mode

isakmp identity = address

ISAKMP keepalive 50 10

part of pre authentication ISAKMP policy 1

of ISAKMP policy 1 encryption

ISAKMP policy 1 md5 hash

Group of ISAKMP policy 1 2

ISAKMP policy 1 life 1200

Hello Krishna

If possible and feasible to try and downgrade the IOS 12.3 (9) to a low-level code as 12.3.6. But, make sure that the image is a single k9 and supports VPN. Also upgrade the pix to 6.3.3.

Assuming that the keys are the same, your configs find ok. Him debugs it seems its not able to pass from the phase 1 properly

could contribute to modify the code.

Concerning

Wakif

Clearing its IPSec on a PIX 515E

Hello

Is it possible to delete a particular IPSec security association to a PIX 515E Version 6.3 (1)?

Concerning

Lisbeth

Clear [crypto] ipsec his destination-address spi protocol entry

is what you are looking for.

Road by default from version 6.3 PIX IPsec tunnel

We have a PIX 501 running IOS version 6.3.1.

There are currently 3 tunnels IPsec active as described below.

What we would like is to have all traffic by default (0.0.0.0 0.0.0.0) range out through the tunnel of the middle line so that traffic can be protected by a firewall on the other side of the tunnel. Since ICF is a Sonicwall what would be needed to be changed in the configuration on the PIX to get there?

Thank you

6.3 (1) version PIX

interface ethernet0 10baset

interface ethernet1 100full

ethernet0 nameif outside security0

nameif ethernet1 inside the security100

activate the 86AZXXmRLxfv/oUQ encrypted password

86AZXXmRLxfv/oUQ encrypted passwd

Site A hostname

domain default.int

clock timezone STD - 7

fixup protocol dns-length maximum 512

fixup protocol ftp 21

fixup protocol h323 h225 1720

fixup protocol h323 ras 1718-1719

fixup protocol http 80

fixup protocol they 389

fixup protocol rsh 514

fixup protocol rtsp 554

fixup protocol sip 5060

fixup protocol sip udp 5060

fixup protocol 2000 skinny

fixup protocol smtp 25

fixup protocol sqlnet 1521

fixup protocol tftp 69

names of

name 75.75.75.2 CovadHub

name 75.48.25.12 Sonicwall

access-list 101 permit ip 10.10.5.0 255.255.255.0 10.10.1.0 255.255.255.0

access-list 101 permit ip 10.10.5.0 255.255.255.0 10.10.2.0 255.255.255.0

access-list 101 permit ip 10.10.5.0 255.255.255.0 10.10.3.0 255.255.255.0

access-list 101 permit icmp any any echo response

access-list 101 permit icmp any any echo

access-list 102 permit ip 10.10.5.0 255.255.255.0 10.10.2.0 255.255.255.0

access-list 103 allow ip 10.10.5.0 255.255.255.0 10.10.1.0 255.255.255.0

access-list 104. allow ip 10.10.5.0 255.255.255.0 10.10.3.0 255.255.255.0

pager lines 24

opening of session

monitor debug logging

logging warnings put in buffered memory

ICMP allow 10.10.5.0 255.255.255.0 inside

Outside 1500 MTU

Within 1500 MTU

external IP 75.25.14.2 255.255.255.0

IP address inside 10.10.5.1 255.255.255.0

alarm action IP verification of information

alarm action attack IP audit

location of PDM 10.10.5.0 255.255.255.0 inside

PDM logging 100 information

history of PDM activate

ARP timeout 14400

Global 1 interface (outside)

(Inside) NAT 0-list of access 101

NAT (inside) 1 0.0.0.0 0.0.0.0 0 0

allow icmp a conduit

Route outside 0.0.0.0 0.0.0.0 75.25.14.1 1

Timeout xlate 0:05:00

Timeout conn 01:00 half-closed 0:10:00 udp 0: CPP 02:00 0:10:00 01:00 h225

H323 timeout 0:05:00 mgcp 0: sip from 05:00 0:30:00 sip_media 0:02:00

Timeout, uauth 0:05:00 absolute

GANYMEDE + Protocol Ganymede + AAA-server

RADIUS Protocol RADIUS AAA server

AAA-server local LOCAL Protocol

NTP server 132.163.4.102 source outdoors

NTP server 129.7.1.66 source outdoors

Enable http server

http 10.10.1.0 255.255.255.0 inside

http 10.10.5.0 255.255.255.0 inside

No snmp server location

No snmp Server contact

SNMP-Server Community public

No trap to activate snmp Server

enable floodguard

Permitted connection ipsec sysopt

Crypto ipsec transform-set esp - esp-md5-hmac pix11

peer11 card crypto ipsec-isakmp 10

correspondence address 10 card crypto peer11 102

peer11 card crypto 10 peers set 75.95.21.41

peer11 card crypto 10 set transform-set pix11

11 peer11 of ipsec-isakmp crypto map

correspondence address 11 card crypto peer11 103

11 peer11 peer Sonicwall crypto card game

card crypto peer11 11 set transform-set pix11

12 peer11 of ipsec-isakmp crypto map

correspondence address 12 card crypto peer11 104

card crypto peer11 12 set peer 75.62.58.28

card crypto peer11 12 set transform-set pix11

peer11 interface card crypto outside

ISAKMP allows outside

ISAKMP key * address 75.62.58.28 netmask 255.255.255.240

ISAKMP key * address netmask 255.255.255.224 Sonicwall

ISAKMP key * address 75.95.21.41 netmask 255.255.255.252

ISAKMP identity address

ISAKMP keepalive 10

ISAKMP nat-traversal 20

part of pre authentication ISAKMP policy 10

encryption of ISAKMP policy 10

ISAKMP policy 10 md5 hash

10 2 ISAKMP policy group

ISAKMP life duration strategy 10 86400

part of pre authentication ISAKMP policy 11

encryption of ISAKMP policy 11

ISAKMP policy 11 md5 hash

11 2 ISAKMP policy group

ISAKMP duration strategy of life 11 28800

part of pre authentication ISAKMP policy 12

encryption of ISAKMP policy 12

ISAKMP policy 12 md5 hash

12 2 ISAKMP policy group

ISAKMP duration strategy of life 12 36000

Telnet 10.10.5.0 255.255.255.0 inside

Telnet 0.0.0.0 0.0.0.0 inside

Telnet timeout 5

SSH 0.0.0.0 0.0.0.0 outdoors

SSH 0.0.0.0 0.0.0.0 inside

SSH timeout 60

Console timeout 0

dhcpd address 10.10.5.70 - 10.10.5.101 inside

dhcpd dns 10.10.1.214

dhcpd rental 43200

dhcpd ping_timeout 750

dhcpd field default.int

dhcpd outside auto_config

dhcpd allow inside

Terminal width 80

Cryptochecksum:36d2c26afa8

03957d 3659

868d9219f8

2

: end

Hello

You do not configure really any type of default route for the VPN L2L. You match rather traffic with 'everything' destination on configuring VPN L2L. Basically you would like to configure the VPN L2L ACL encryption with the 'whole' destination map

I guess in your case it would be the ACL named "103".

access-list 103 allow ip 10.10.5.0 255.255.255.0 any

IP 10.10.5.0 doesn't allow any access list 103 255.255.255.0 10.10.1.0 255.255.255.0

Naturally, your NAT0 ACL configuration should also reflect this change. I guess the end remote Sonicwall'd private NAT to public Internet access in this case whereas. I guess that in this case, the ACL NAT0 might even be just this one rule ACL

access-list 101 permit ip 10.10.5.0 255.255.255.0 any

BUT what I was asking however for now mainly is the fact it has a priority of '11' in the 'crypto map' which has between 2 other L2L VPN connections.

peer11 card crypto ipsec-isakmp 10

correspondence address 10 card crypto peer11 102

peer11 card crypto 10 peers set 75.95.21.41

peer11 card crypto 10 set transform-set pix11

11 peer11 of ipsec-isakmp crypto map

correspondence address 11 card crypto peer11 103

11 peer11 peer Sonicwall crypto card game

card crypto peer11 11 set transform-set pix11

12 peer11 of ipsec-isakmp crypto map

correspondence address 12 card crypto peer11 104

card crypto peer11 12 set peer 75.62.58.28

card crypto peer11 12 set transform-set pix11

If you have changed the destination address of '103' crypto VPN L2L ACL at "" I guess that would probably cause so that the last connection VPN L2L with "12" priority may stop working since the previous connection already corresponds to 'all' your network 'inside' destination address.

The solution might be to delete the current configuration of the '11' priority and add it with '13' for example, so that the other 2 connections VPN L2L could continue to work and all the rest of the traffic would be passed to the connection VPN L2L with Sonicwall as the remote peer.

No crypto map ipsec-isakmp 11 peer11

no correspondence address 11 card crypto peer11 103

no set of 11 peer11 card crypto don't peer Sonicwall

No peer11 11 set transform-set pix11 crypto card

13 peer11 of ipsec-isakmp crypto map

correspondence address 13 card crypto peer11 103

13 card crypto peer Sonicwall peer11 game

card crypto peer11 13 pix11 transform-set game

I have to say that this is how I expect it should work. I worked with VPN L2L that have been configured in this way but its quite rare.

If you want to try something like that, of course, be ready to return to the old configuration with your admins of the remote peer, if things do not work. I guess more difficult configurations changes must be made on the remote end while your configuration of the ends should be fairly simple.

Hope this helps

-Jouni

PIX 7.1 amp (2) IPSEC

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