DMZ and PIX failover

Hello

I'm pretty happy with the tipping of inside and outside interfaces - i.e. the backup PIX inherits the IP address and MAC address of the main unit. However, what about the DMZ interface? Which also inherits the IP address and MAC of the primary unit?

In a design of failover DMZ with only a couple of servers on the DMZ, you connect two PIX DMZ interfaces into a common switch (same VLAN of course!) and then plug servers?

Pretty basic questions, I don't know, but I cannot find an answer to this on cco.

Best regards, Steve

Hi Steve,.

Yes... DMZ interfaces inherited also the IP and MAC address of the primary PIX.

In this scenario, even if you have a server you need to plug the 2 PIX on a switch and then the server on the same VLAN... This will ensure the physical accessibility of the server at the same time PIX. In case you have only a single connection, you must change the cable manually, when a PIX fails, which is a big headache...

I hope this helps...

the rate of answers if found useful!

Tags: Cisco Security

Similar Questions

PIX failover: failover cable disconnected and active the unit off

Hi all

We have 2 PIX 515E 6.3 (3) in the failover configuration (not stateful failover). Basically, the failover works very well. Recently, we did some testing of failover and had the following situation:

When we force the active PIX failover cable is disconnected, the rest-aid box inactive and has not changed in the active state.

It is the 'normal' behavior or is there something wrong?

Thank you for your response.

Daniel Ruch

Daniel,

As mentioned previously, the behavior you report is expected. If the failover cable is removed from a pair of PIX failover during the race, each PIX will maintain it's State as active it or standby PIX. Remove the failover cable in effect, disables the failover of both units to avoid having two devices moving to an active state.

Does make sense? I'm still confused what about * why * you test this though. Is this something you think that will happen in your environment?

Scott

PIX failover

We have a PIX 515e failover bundle. In the documentation, I read that the PIX failover will restart even 12 hours min. This also occur in a failover design 'ordinary '?

If the status of the lan failover interface connection is in place:

* The only FO PIX will start and becomes automatically active if it fails to detect the primary UR PIX.

* The device recharges itself all 24 hours, becomes automatically active whenever.

If the lan failover interface link status is down:

* The only FO PIX will start and are online but not become active.

Active failover ordering must be run manually to the active unit.

* The device recharges itself all 24 hours, requiring another manual failover active to make it active each time.

This is precisely why we suggest to to connect with PIX failover through a switch instead of a crossover cable.

PIX failover message

I've recently updated the key for activation on a PIX and now get the message:

========================== NOTICE =========================

This machine has been approved as a unit of secondary failover

but it lacks a connection to a primary PIX entirely under license.

Please check the connection of cable to failover to the

primary system. This machine will restart at intervals

in its current state.

I don't want to use failover.

I tried to disconnect the connector of switch but no change.

So I have two problems, 1) whenever I make a configuration change, I get the "can not sync config are you high school", but more 2) he worry about the States in the above message that the device will restart at intervals!

Anyone know how to disable this?

Hello

If you do not have this key in the activation message befor Exchange, then you got the incorrect license key. This means that you downgrated a PIX entirely under license in a PIX failover. Reply to the email that you have received the key to and ask the right key. Until you get the right key, your PIX will restart every day.

I got a bad hit some time ago, that has been disable IPSEC and updated remotely. After the restart, I had to get out there and change the key because the VPN broke down.

Hope this helps

Norbert

Boring for pix failover message

Hello

>

> I have two firewalls of PIX525 editing just with dynamic rollover and they

> sewing to work properly except that I'm getting the message...

>

> Warning, lack of ip address or the inside interface failover

>

> The inside interface has an ip address and I don't want to use it for

> failover, so why I get this message?

>

> I'm under 6.3.4

Hello

When you set up failover, you must assign each ip address, interfacean @,.

When you assign an ip @ to a failover interface, the pix continues to display decreasing message. It assumes that there is an error.

If you must give to each interface of your pix failover ip @.

failover ip inside everything that...

hope this helps.

Connectivity problems from site to Site - ASA and PIX

I'm trying to set up a tunnel between the ASA and PIX but I have some difficulty.

On the side of the ASA

June 29 at 08:09:44 [IKEv1]: Group = 190.213.57.203, IP = 190.213.57.203, error QM WSF (P2 struct & 0xc9309260, mess id 0x7e79b74e).

June 29 at 08:09:44 [IKEv1]: Group = 190.213.57.203, IP = 190.213.57.203, peer table correlator Removing failed, no match!

June 29 at 08:09:44 [IKEv1]: Group = 190.213.57.203, IP = 190.213.57.203, Session is be demolished. Reason: Phase 2
On the side of PIX

ISAKMP (0): the total payload length: 37
to return to the State is IKMP_NO_ERROR
crypto_isakmp_process_block:src:63.143.77.114, dest:190.213.57.203 spt:500 dpt:500
Exchange OAK_MM
ISAKMP (0): processing ID payload. Message ID = 0
ISAKMP (0): HASH payload processing. Message ID = 0
ISAKMP (0): load useful treatment vendor id

ISAKMP (0): Peer Remote supports dead peer detection

ISAKMP (0): SA has been authenticated.

ISAKMP (0): start Quick Mode Exchange, M - ID - 813626169:cf810cc7IPSEC (key_engine): had an event of the queue...
IPSec (spi_response): spi 0xbb1797c2 graduation (3138885570) for SA
from 63.143.77.114 to 190.213.57.203 for prot 3

to return to the State is IKMP_NO_ERROR
ISAKMP (0): send to notify INITIAL_CONTACT
ISAKMP (0): sending message 24578 NOTIFY 1 protocol
Peer VPN: ISAKMP: approved new addition: ip:63.143.77.114/500 Total VPN peers: 2
Peer VPN: ISAKMP: ip:63.143.77.114/500 Ref cnt is incremented to peers: 1 Total VPN peers: 2
crypto_isakmp_process_block:src:63.143.77.114, dest:190.213.57.203 spt:500 dpt:500
ISAKMP (0): processing NOTIFY payload 14 Protocol 3
SPI 0, message ID = 2038434904
to return to the State is IKMP_NO_ERR_NO_TRANS
crypto_isakmp_process_block:src:63.143.77.114, dest:190.213.57.203 spt:500 dpt:500
ISAKMP (0): processing DELETE payload. Message ID = 1798094647, spi size = 16
ISAKMP (0): delete SA: src 190.213.57.203 dst 63.143.77.114
to return to the State is IKMP_NO_ERR_NO_TRANS
ISADB: Reaper checking HIS 0x11fa6fc, id_conn = 0
ISADB: Reaper checking HIS 0x121ac3c, id_conn = 0 DELETE IT!

Peer VPN: ISAKMP: ip:63.143.77.114/500 Ref cnt decremented to peers: 0 Total of VPN peers: 2
Peer VPN: ISAKMP: deleted peer: ip:63.143.77.114/500 VPN Total peers:1IPSEC (key_engine): had an event of the queue...
IPSec (key_engine_delete_sas): rec would remove the ISAKMP notify
IPSec (key_engine_delete_sas): remove all SAs shared with 63.143.77.114

The ASA configuration

ASA Version 8.2 (5)

!

interface Ethernet0/0

switchport access vlan 2

!

interface Ethernet0/1

!

interface Ethernet0/2

!

interface Ethernet0/3

!

interface Ethernet0/4

!

interface Ethernet0/5

!

interface Ethernet0/6

!

interface Ethernet0/7

!

interface Vlan1

nameif inside

security-level 100

IP 192.168.102.1 255.255.255.0

!

interface Vlan2

nameif outside

security-level 0

IP 63.143.77.114 255.255.255.252

!

passive FTP mode

clock timezone IS - 5

DNS lookup field inside

DNS domain-lookup outside

DNS server-group DefaultDNS

domain lexlocal

object-group service DM_INLINE_SERVICE_3

the eq https tcp service object

the eq telnet tcp service object

ICMP service object

the purpose of the service tcp - udp eq www

the udp service object

object-group service DM_INLINE_SERVICE_5

the udp service object

the tcp service object

the purpose of the service tcp - udp eq www

the purpose of the service tcp eq www

the purpose of the service udp eq www

ICMP service object

object-group service DM_INLINE_SERVICE_8

the eq https tcp service object

the purpose of the service tcp - udp eq www

object-group Protocol DM_INLINE_PROTOCOL_1

ip protocol object

object-protocol udp

object-tcp protocol

object-group service DM_INLINE_SERVICE_4

the purpose of the service tcp - udp eq www

the eq https tcp service object

EQ-tcp smtp service object

the purpose of the udp eq snmp service

the purpose of the ip service

ICMP service object

object-group Protocol DM_INLINE_PROTOCOL_2

ip protocol object

object-protocol udp

object-tcp protocol

object-group Protocol DM_INLINE_PROTOCOL_3

ip protocol object

object-protocol udp

object-tcp protocol

inside_nat0_outbound list of allowed ip extended access all VPN_Access 255.255.255.240

access extensive list ip 192.168.102.0 inside_nat0_outbound allow Barbado-internal 255.255.255.0 255.255.255.0

inside_nat0_outbound list of allowed ip extended access all VPN_Access 255.255.255.192

access extensive list ip 192.168.102.0 inside_nat0_outbound allow 255.255.255.0 JA_Office_Internal 255.255.255.0

access extensive list ip 192.168.102.0 inside_nat0_outbound allow 255.255.255.0 P.O.S_Office_internal 255.255.255.0

outside_authentication list extended access allowed object-group DM_INLINE_PROTOCOL_3 all all idle state

inside_access_in access-list extended ip any any idle state to allow

inside_access_in list extended access allowed object-group host Jeremy DM_INLINE_SERVICE_5 all

inside_access_in list extended access allowed object-group DM_INLINE_SERVICE_3 192.168.102.0 255.255.255.0 any

inside_access_in list extended access allowed object-group DM_INLINE_PROTOCOL_1 192.168.102.0 255.255.255.0 192.168.102.0 255.255.255.0

outside_access_in list extended access allowed object-groups DM_INLINE_PROTOCOL_2 host interface idle outside Jeremy

outside_access_in list extended access allowed object-group DM_INLINE_SERVICE_4 any external interface

extended access list ip 255.255.255.0 Barbado-internal outside_access_in allow 192.168.102.0 255.255.255.0

outside_access_in list extended access allowed object-group DM_INLINE_SERVICE_8 any inactive external interface

IP JA_Office_Internal 255.255.255.0 JA_Office_Internal 255.255.255.0 allow Access-list extended outside_access_in

IP P.O.S_Office_internal 255.255.255.0 P.O.S_Office_internal 255.255.255.0 allow Access-list extended outside_access_in

access extensive list ip 192.168.102.0 outside_1_cryptomap allow Barbado-internal 255.255.255.0 255.255.255.0

access extensive list ip 192.168.102.0 outside_2_cryptomap allow 255.255.255.0 JA_Office_Internal 255.255.255.0

access extensive list ip 192.168.102.0 outside_3_cryptomap allow 255.255.255.0 P.O.S_Office_internal 255.255.255.0

pager lines 24

Enable logging

asdm of logging of information

Within 1500 MTU

Outside 1500 MTU

mask of local pool remote_users 192.168.200.1 - 192.168.200.10 IP 255.255.255.0

mask of local pool VPN_IPs 192.168.200.25 - 192.168.200.50 IP 255.255.255.248

no failover

ICMP unreachable rate-limit 1 burst-size 1

ICMP allow any inside

don't allow no asdm history

ARP timeout 14400

Global 1 interface (outside)

NAT (inside) 0-list of access inside_nat0_outbound

NAT (inside) 1 0.0.0.0 0.0.0.0

inside_access_in access to the interface inside group

Access-group outside_access_in in interface outside

Route outside 0.0.0.0 0.0.0.0 63.143.77.113 1

Timeout xlate 03:00

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

Sunrpc timeout 0:10:00 h323 0:05:00 h225 mgcp from 01:00 0:05:00 mgcp-pat 0:05:00

Sip timeout 0:30:00 sip_media 0:02:00 prompt Protocol sip-0: 03:00 sip - disconnect 0:02:00

Timeout sip-provisional-media 0:02:00 uauth 0:05:00 absolute

timeout tcp-proxy-reassembly 0:01:00

Floating conn timeout 0:00:00

dynamic-access-policy-registration DfltAccessPolicy

the ssh LOCAL console AAA authentication

AAA authentication match outside the LOCAL outside_authentication

Enable http server

No snmp server location

No snmp Server contact

Server enable SNMP traps snmp authentication linkup, linkdown cold start

Sysopt connection timewait

Crypto ipsec transform-set ESP-AES-256-MD5 esp-aes-256 esp-md5-hmac

Crypto ipsec transform-set ESP-DES-SHA esp - esp-sha-hmac

Crypto ipsec transform-set ESP-AES-192-MD5 esp-aes-192 esp-md5-hmac

Crypto ipsec transform-set ESP-AES-256-SHA 256 - aes - esp esp-sha-hmac

Crypto ipsec transform-set ESP-AES-128-SHA aes - esp esp-sha-hmac

Crypto ipsec transform-set ESP-AES-192-SHA esp-aes-192 esp-sha-hmac

Crypto ipsec transform-set ESP-AES-128-MD5-esp - aes esp-md5-hmac

Crypto ipsec transform-set esp-3des esp-sha-hmac TRANS_ESP_3DES_SHA

Crypto ipsec transform-set transit mode TRANS_ESP_3DES_SHA

Crypto ipsec transform-set ESP-3DES-MD5-esp-3des esp-md5-hmac

Crypto ipsec transform-set esp-SHA-ESP-3DES-3des esp-sha-hmac

Crypto ipsec transform-set ESP-DES-MD5 esp - esp-md5-hmac

life crypto ipsec security association seconds 28800

Crypto ipsec kilobytes of life - safety 4608000 association

crypto dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 65535 pfs Group1 set

Crypto dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 65535 value transform-set ESP-AES-128-SHA ESP-AES-128-MD5 ESP-AES-192-SHA ESP-AES-192-MD5 ESP-AES-256-SHA ESP-AES-256-MD5 ESP-3DES-SHA MD5-ESP-3DES ESP-DES-SHA ESP-DES-MD5

card crypto outside_map 1 match address outside_1_cryptomap

card crypto outside_map 1 set pfs

peer set card crypto outside_map 1 200.50.87.198

card crypto outside_map 1 set of transformation-ESP-3DES-SHA

card crypto outside_map 2 match address outside_2_cryptomap

card crypto outside_map 2 set pfs

peer set card crypto outside_map 2 66.54.113.191

card crypto outside_map 2 game of transformation-ESP-3DES-SHA

card crypto outside_map 3 match address outside_3_cryptomap

card crypto outside_map 3 set pfs

peer set card crypto outside_map 3 190.213.57.203

card crypto outside_map 3 game of transformation-ESP-DES-MD5

outside_map card crypto 65535-isakmp dynamic ipsec SYSTEM_DEFAULT_CRYPTO_MAP

outside_map interface card crypto outside

crypto ISAKMP allow outside

crypto ISAKMP policy 10

preshared authentication

3des encryption

sha hash

Group 2

life 86400

crypto ISAKMP policy 30

authentication crack

3des encryption

sha hash

Group 2

life 86400

crypto ISAKMP policy 50

preshared authentication

the Encryption

md5 hash

Group 2

life 86400

crypto ISAKMP policy 65535

preshared authentication

3des encryption

sha hash

Group 2

life 86400

crypto ISAKMP disconnect - notify

Telnet timeout 5

SSH timeout 5

Console timeout 0

dhcpd address 192.168.102.30 - 192.168.102.50 inside

dhcpd dns 66.54.116.4 66.54.116.5 interface inside

dhcpd allow inside

!

dhcpd dns 66.54.116.4 66.54.116.5 outside interface

!

a basic threat threat detection

Statistics-list of access threat detection

a statistical threat detection tcp-interception rate-interval 30 burst-400-rate average rate 200

WebVPN

allow outside

internal DefaultRAGroup group strategy

attributes of Group Policy DefaultRAGroup

VPN-tunnel-Protocol svc

lexlocal value by default-field

WebVPN

SVC keepalive no

internal DefaultRAGroup_1 group strategy

attributes of Group Policy DefaultRAGroup_1

Protocol-tunnel-VPN l2tp ipsec

lexlocal value by default-field

WebVPN

SVC keepalive no

internal VPN_Tunnel_Client group strategy

attributes of Group Policy VPN_Tunnel_Client

value of server DNS 192.168.102.1

Protocol-tunnel-VPN IPSec l2tp ipsec svc

lexlocal value by default-field

username VPN_Connect password 6f7B + J8S2ADfQF4a/CJfvQ is nt encrypted

username VPN_Connect attributes

type of nas-prompt service

xxxxex iFxSRrE9uIWAFjJE encrypted password username

attributes global-tunnel-group DefaultRAGroup

address pool remote_users

address pool VPN_IPs

Group Policy - by default-DefaultRAGroup_1

IPSec-attributes tunnel-group DefaultRAGroup

pre-shared key *.

tunnel-group 200.50.87.198 type ipsec-l2l

IPSec-attributes tunnel-group 200.50.87.198

pre-shared key *.

type tunnel-group VPN_Tunnel_Client remote access

attributes global-tunnel-group VPN_Tunnel_Client

address pool remote_users

Group Policy - by default-VPN_Tunnel_Client

IPSec-attributes tunnel-group VPN_Tunnel_Client

pre-shared key *.

tunnel-group 66.54.113.191 type ipsec-l2l

IPSec-attributes tunnel-group 66.54.113.191

pre-shared key *.

tunnel-group 190.213.57.203 type ipsec-l2l

IPSec-attributes tunnel-group 190.213.57.203

pre-shared key *.

!

class-map inspection_default

match default-inspection-traffic

!

!

type of policy-card inspect dns preset_dns_map

parameters

maximum message length automatic of customer

message-length maximum 512

Policy-map global_policy

class inspection_default

inspect the preset_dns_map dns

inspect the ftp

inspect h323 h225

inspect the h323 ras

Review the ip options

inspect the netbios

inspect the rsh

inspect the rtsp

inspect the skinny

inspect esmtp

inspect sqlnet

inspect sunrpc

inspect the tftp

inspect the sip

inspect xdmcp

!

global service-policy global_policy

context of prompt hostname

no remote anonymous reporting call

call-home

Profile of CiscoTAC-1

PIX configuration

lexmailserver name 192.168.1.3

name 192.168.1.120 Lextt-SF

name 192.168.1.6 Lextt-ms

name 192.168.100.0 Barbados

name 192.168.102.0 Data_Center_Internal

outside_access_in tcp allowed access list any interface outside eq smtp

outside_access_in tcp allowed access list any interface outside eq www

outside_access_in tcp allowed access list any interface outside eq https

inside_outbound_nat0_acl ip access list allow any 192.168.2.0 255.255.255.224

permit 192.168.1.0 ip access list inside_outbound_nat0_acl 255.255.255.0 Barbado

permit 192.168.1.0 ip access list inside_outbound_nat0_acl 255.255.255.0 Data_Ce

permit 192.168.1.0 ip access list outside_cryptomap_20 255.255.255.0 Barbados 25

permit 192.168.1.0 ip access list outside_cryptomap_40 255.255.255.0 Data_Center

pager lines 24

opening of session

debug logging in buffered memory

logging trap information

logging out of the 190.213.57.203 host

Outside 1500 MTU

Within 1500 MTU

external IP 190.213.57.203 255.255.255.0

IP address inside 192.168.1.1 255.255.255.0

IP verify reverse path to the outside interface

alarm action IP verification of information

alarm action attack IP audit

IP local pool vpn_pool 192.168.2.0 - 192.168.2.20

no failover

failover timeout 0:00:00

failover poll 15

No IP failover outdoors

No IP failover inside

PDM location lexmailserver 255.255.255.255 outside

location of PDM Lextt-ms 255.255.255.255 outside

location of PDM 192.168.2.0 255.255.255.224 outside

location of PDM 200.50.87.198 255.255.255.255 outside

PDM location Barbados 255.255.255.0 inside

location of PDM 255.255.255.255 Lextt-SF on the inside

PDM location 255.255.255.0 outside Barbados

location of PDM 255.255.255.255 Lextt-ms on the inside

location of PDM Data_Center_Internal 255.255.255.0 outside

PDM 100 logging alerts

history of PDM activate

ARP timeout 14400

Global interface 10 (external)

NAT (inside) 0-list of access inside_outbound_nat0_acl

NAT (inside) 10 192.168.1.0 255.255.255.0 0 0

public static tcp (indoor, outdoor) interface smtp smtp Lextt-SF netmask 255.255.255.255

public static tcp (indoor, outdoor) interface www Lextt-ms www netmask 255.255.255.255 0

public static tcp (indoor, outdoor) interface Lextt-ms https netmask 255.255.255.2 https

Access-group outside_access_in in interface outside

Route outside 0.0.0.0 0.0.0.0 190.213.73.1 1

Timeout xlate 03:00

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

AAA-server GANYMEDE + 3 max-failed-attempts

AAA-server GANYMEDE + deadtime 10

RADIUS Protocol RADIUS AAA server

AAA-server RADIUS 3 max-failed-attempts

AAA-RADIUS deadtime 10 Server

AAA-server local LOCAL Protocol

AAA authentication enable LOCAL console

the ssh LOCAL console AAA authentication

Enable http server

http 192.168.1.0 255.255.255.0 inside

Barbados 255.255.255.0 HTTP 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

Sysopt connection permit-pptp

Crypto ipsec transform-set ESP-DES-MD5 esp - esp-md5-hmac

outside_map 20 ipsec-isakmp crypto map

card crypto outside_map 20 match address outside_cryptomap_20

peer set card crypto outside_map 20 200.50.87.198

outside_map card crypto 20 the transform-set ESP-DES-MD5 value

outside_map 40 ipsec-isakmp crypto map

card crypto outside_map 40 correspondence address outside_cryptomap_40

peer set card crypto outside_map 40 63.143.77.114

outside_map card crypto 40 the transform-set ESP-DES-MD5 value

outside_map interface card crypto outside

ISAKMP allows outside

ISAKMP key * address 200.50.87.198 netmask 255.255.255.255

ISAKMP key * address 63.143.77.114 netmask 255.255.255.255

part of pre authentication ISAKMP policy 20

encryption of ISAKMP policy 20

ISAKMP policy 20 md5 hash

20 2 ISAKMP policy group

ISAKMP duration strategy of life 20 86400

Telnet timeout 5

If you haven't already done so, you must clear the SAs Phase I on both sides after you make a change to the map. Once the Phase I SA has been cleared, he renegotiate and reset Phase II. If you alerady made this, the only other thing I can think is manually re-enter the secrets disclosed in advance on tunnel groups then erase both the Phase I and Phase II SAs.

to remove all of our vids and pix?

My kid deleted all our family videos and pix. can I find them here and restore them? How?

Backups may be your best option. There are people hell-bent on "safeguards" so. I think you know what it is now.

Look in the Recycle Bin - always there? Restore them.

Not in the trash? May be able to use somehting like "Recuva" to recover things.

Configuration of the DMZ and USER-BASE10

Hello

I've been using System DMZ1 variables... 3 and USER-ADDRS1... 5 to identify the different networks. However, I was wondering, what is the difference between the DMZ and USER-BASE10? It is in the name, or they are used in different ways by some aspects of the software?

Kind regards

Matt

There is no difference. They are purely just names. The sensorApp just treats them as variables that can be used to specify filters.

VPN between cisco unified customer 3.6.3 and Pix 501 6.2 (1) with the MS CA server

Hello

I have Microsoft CA server with the latest support CEP and pix 501 that gets the digital certificate. I also have the client certificate of Cisco, but VPN doesn't work

In the IPSec Log Viewer, I constantly "CM_IKE_ESTABLISH_FAIL."

It worked well prior to Win2k server has been completely updated with the latest patches.

The pix configuration is identical to that of article http://www.cisco.com/warp/public/471/configipsecsmart.html

I reinstall the stand-alone CA and support CEP server but not had any luck.

What could be wrong?

It looks like IKE implementation problem. Make DH group 2 policy ISAKMP.

Visit this link:

http://www.Cisco.com/univercd/CC/TD/doc/product/iaabu/PIX/pix_v53/IPSec/exvpncl.htm

ASA inside access DMZ and return

Hi Expert,

How configure ASA to allow access from the inside to dmz host and also back?

Thank you.

Rgds,

To the Shaw feel Yeong

Hello

By default, access from inside the DMZ is permitted this access is through higher security level to lower the level of security.

Return to inside host traffic is automatically granted by ASA/firewall if the connection / translation is valid / exists.

Example:

Inside of the intellectual property: 192.168.1.1/24

DMZ: 172.16.1.1/24

2 two ways to do:

a. use nat & global command:

Global (dmz) 1 172.16.1.10 - 172.16.1.20--> help de.10 a.20 will be used inside hosts to access dmz

Global (dmz) 1 172.16.1.21--> all inside will use this IP like PAT, if the above range is fully used.

NAT (inside) 1 192.168.1.0 255.255.255.0

Note:

-Use the ACL if you need to control the type of service to pass through and apply on the inside of the interface.

b. static use of translation between inside and DMZ subnets:

static (inside, dmz) 192.168.1 192.168.1.0 netmask 255.0.0.0

Note:

-This will allow inside the host to initiate & access dmz and dmz to initiate & access to the inside (initiate connection to dmz host). When DMZ accessing inside the host, DMZ use inside physics/assigned host IP.

-Use the ACL if you need to control the type of service for cross and apply on time interfaces dmz & Interior.

Example of configuration:

http://www.Cisco.com/en/us/products/HW/vpndevc/ps2030/products_configuration_example09186a00806745b8.shtml

* Watch under command "static (inside the dmz).

Rgds,

AK

quick question on the DMZ and networking

Need help please, I am a newbie to vm and need quick help...
I have a well-configured firewall and 1 Server ESXi 5.5 configuration to test only at home...
My firewall has 2 ports for internal network and one connected to my ISP
I have the internal ports
Port LAN ip 1 local schema with DHCP server running on the firewall
Port 2 is DMZ, I have 4 static ip to use for remote mail, web server
on an ESX Server, I have 2 NICs 1 plugged into port DMZ and LAN 1 port firewall
What is the best way to separate these 2 and make them work
internal vms example has no access to the DMZ and will have no LAN NIC, added to the virtual machine
But Web servers and mail server should have connected NIC times and each nic gets entered the appropriate IP address based on what network card and the network it uses
Can I use 1 switch vm and vm 1 network? or 1 vm change and create 2 networks? How to configure NIC and vmnetworks to communicate properly?

Since you have two separate network, an in-house cards and a demilitarized zone, you will need two vSwitches. Each with a network card. The first will be your internal network and management, the other for the demilitarized zone.

Then, you will need to create the appropriate exchanges.

VM in DMZ and LAN on the same ESXi Server VM

It is advisable to run two virtual machines on a physical ESXi Server considering only
a VM THAT is connected to the DMZ (demilitarized zone) and another VM is connected to the local network.
For example, a virtual machine can be a gateway mail server in the DMZ and
another VM can be located in LAN mail server.
ESXi box has multiple network cards, so a single card could be connected to the DMZ and others to the local network.
Is it dangerous from the point of view of security?

It becomes really dangerous if you have a virtual machine that is connected to two networks at the same time if not online, there is no way known to cross borders. Other that that, you should be good to go

Steve Beaver

VMware communities user moderator

VMware vExpert 2009

====

Co-author of "VMware ESX Essentials in the data center" virtual

(ISBN:1420070274) Auerbach

Come and see my blog: www.theVirtualBlackHole.com

Come follow me on twitter http://www.twitter.com/sbeaver

*Virtualization is a journey, not a project. *

506th 3.6.3 VPN client and PIX

Hello

I am trying to build a VPN between Ver of Client VPN 3.6.3 and a 6.2 (2) running of PIX 506e with 3DES.

Firewall # sh ver

Cisco PIX Firewall Version 6.2 (2)

Cisco PIX Device Manager Version 2.1 (1)

Updated Saturday, June 7 02 17:49 by Manu

Firewall up to 7 days 4 hours

Material: PIX-506E, 32 MB RAM, Pentium II 300 MHz processor

Flash E28F640J3 @ 0 x 300, 8 MB

BIOS Flash AM29F400B @ 0xfffd8000, 32 KB

Features licensed:

Failover: disabled

VPN - A: enabled

VPN-3DES: enabled

Maximum Interfaces: 2

Cut - through Proxy: enabled

Guardians: enabled

URL filtering: enabled

Internal hosts: unlimited

Flow: limited

Peer IKE: unlimited

Modified configuration of enable_15 to 22:59:47.355 UTC Friday, December 13, 2002

Firewall #.

I get the following errors:

Firewall #.

crypto_isakmp_process_block: src dest 198, Mike.

Peer VPN: ISAKMP: approved new addition: ip:Mike Total VPN peer: 1

Peer VPN: ISAKMP: ip:Mike Ref cnt is incremented to peers: 1 Total peer VPN: 1

Exchange OAK_AG

ISAKMP (0): treatment ITS payload. Message ID = 0

ISAKMP (0): audit ISAKMP transform 1 against the policy of priority 10

ISAKMP: encryption... What? 7?

ISAKMP: hash SHA

ISAKMP: default group 2

ISAKMP: preshared extended auth

ISAKMP: type of life in seconds

ISAKMP: lifespan (IPV) 0x0 0 x 20 0xc4 0x9b

ISAKMP: attribute 3584

ISAKMP (0): atts are not acceptable. Next payload is 3

ISAKMP (0): audit ISAKMP transform 2 against the policy of priority 10

ISAKMP: encryption... What? 7?

ISAKMP: MD5 hash

ISAKMP: default group 2

ISAKMP: preshared extended auth

ISAKMP: type of life in seconds

ISAKMP: lifespan (IPV) 0x0 0 x 20 0xc4 0x9b

ISAKMP: attribute 3584

ISAKMP (0): atts are not acceptable. Next payload is 3

ISAKMP (0): audit ISAKMP transform 3 against the policy of priority 10

ISAKMP: encryption... What? 7?

ISAKMP: hash SHA

ISAKMP: default group 2

ISAKMP: preshared auth

ISAKMP: type of life in seconds

ISAKMP: lifespan (IPV) 0x0 0 x 20 0xc4 0x9b

ISAKMP: attribute 3584

ISAKMP (0): atts are not acceptable. Next payload is 3

ISAKMP (0): audit ISAKMP transform 4 against the policy of priority 10

ISAKMP: encryption... What? 7?

ISAKMP: MD5 hash

ISAKMP: default group 2

ISAKMP: preshared auth

ISAKMP: type of life in seconds

ISAKMP: lifespan (IPV) 0x0 0 x 20 0xc4 0x9b

ISAKMP: attribute 3584

ISAKMP (0): atts are not acceptable. Next payload is 3

ISAKMP (0): audit ISAKMP transform against the policy of priority 10 5

ISAKMP: encryption... What? 7?

ISAKMP: hash SHA

ISAKMP: default group 2

ISAKMP: preshared extended auth

ISAKMP: type of life in seconds

ISAKMP: lifespan (IPV) 0x0 0 x 20 0xc4 0x9b

ISAKMP: attribute 3584

ISAKMP (0): atts are not acceptable. Next payload is 3

ISAKMP (0): audit ISAKMP transform 6 against the policy of priority 10

ISAKMP: encryption... What? 7?

ISAKMP: MD5 hash

ISAKMP: default group 2

ISAKMP: preshared extended auth

ISAKMP: type of life in seconds

ISAKMP: lifespan (IPV) 0x0 0 x 20 0xc4 0x9b

ISAKMP: attribute 3584

ISAKMP (0): atts are not acceptable. Next payload is 3

ISAKMP (0): audit ISAKMP transform 7 against the policy of priority 10

ISAKMP: encryption... What? 7?

ISAKMP: hash SHA

ISAKMP: default group 2

ISAKMP: preshared auth

ISAKMP: type of life in seconds

ISAKMP: lifespan (IPV) 0x0 0 x 20 0xc4 0x9b

ISAKMP: attribute 3584

ISAKMP (0): atts are not acceptable. Next payload is 3

ISAKMP (0): audit ISAKMP transform 8 against the policy of priority 10

ISAKMP: encryption... What? 7?

ISAKMP: MD5 hash

ISAKMP: default group 2

ISAKMP: preshared auth

ISAKMP: type of life in seconds

ISAKMP: lifespan (IPV) 0x0 0 x 20 0xc4 0x9b

ISAKMP: attribute 3584

ISAKMP (0): atts are not acceptable. Next payload is 3

ISAKMP (0): audit ISAKMP transform 9 against the policy of priority 10

ISAKMP: encryption... What? 7?

ISAKMP: hash SHA

ISAKMP: default group 2

ISAKMP: preshared extended auth

ISAKMP: type of life in seconds

ISAKMP: lifespan (IPV) 0x0 0 x 20 0xc4

crypto_isakmp_process_block: src dest 198, Mike.

Peer VPN: ISAKMP: ip:Mike Ref cnt is incremented to peers: 2 Total VPN peer: 1

Peer VPN: ISAKMP: ip:Mike Ref cnt decremented to peers: 1 Total peer VPN: 1

crypto_isakmp_process_block: src dest 198, Mike.

Peer VPN: ISAKMP: ip:Mike Ref cnt is incremented to peers: 2 Total VPN peer: 1

Peer VPN: ISAKMP: ip:Mike Ref cnt decremented to peers: 1 Total peer VPN: 1

crypto_isakmp_process_block: src dest 198, Mike.

Peer VPN: ISAKMP: ip:Mike Ref cnt is incremented to peers: 2 Total VPN peer: 1

Peer VPN: ISAKMP: ip:Mike Ref cnt decremented to peers: 1 Total peer VPN: 1

ISAKMP (0): retransmission of phase 1...

ISAKMP (0): retransmission of phase 1...

ISAKMP (0): delete SA: CBC Mike, dst 198.143.226.158

ISADB: Reaper checking HIS 0x812ba828, id_conn = 0 DELETE IT!

Peer VPN: ISAKMP: ip:Mike Ref cnt decremented to peers: 0 Total of VPN peer: 1

Peer VPN: ISAKMP: deleted peer: ip:Mike VPN peer Total: 0

Looks like I have a problem of encryption. Here is the biggest part of my setup:

: Saved

:

6.2 (2) version PIX

ethernet0 nameif outside security0

nameif ethernet1 inside the security100

activate the encrypted password

encrypted passwd

Firewall host name

domain name

fixup protocol ftp 21

fixup protocol http 80

fixup protocol h323 h225 1720

fixup protocol h323 ras 1718-1719

fixup protocol they 389

fixup protocol rsh 514

fixup protocol rtsp 554

fixup protocol sqlnet 1521

fixup protocol sip 5060

fixup protocol 2000 skinny

No fixup not protocol smtp 25

names of

access-list outside_access_in.255.255.224 all

access-list outside_access_in 255.255.255.224 all

outside_access_in tcp allowed access list all hosteq smtp

outside_access_in list access permit tcp any host eq pop3

outside_access_in list access permit tcp any host eq 5993

outside_access_in tcp allowed access list all hostq smtp

outside_access_in tcp allowed access list all pop3 hosteq

outside_access_in list access permit tcp any host eq www

outside_access_in tcp allowed access list any ftp hosteq

outside_access_in tcp allowed access list all www hosteq

outside_access_in tcp allowed access list all www hosteq

allow the ip host Toronto one access list outside_access_in

permit outside_access_in ip access list host Mike everything

outside_access_in deny ip access list a whole

pager lines 24

opening of session

monitor debug logging

buffered logging critical

logging trap warnings

history of logging warnings

host of logging inside

interface ethernet0 car

Auto interface ethernet1

ICMP allow all outside

ICMP allow any inside

Outside 1500 MTU

Within 1500 MTU

IP address outside some 255.255.255.248

IP address inside 10.1.1.1 255.255.255.0

IP verify reverse path to the outside interface

IP verify reverse path inside interface

alarm action IP verification of information

alarm action attack IP audit

IP local pool vpnpool 192.168.1.50 - 192.168.1.75

PDM location 255.255.255.255 inside xxx

location of router PDM 255.255.255.255 outside

PDM location 255.255.255.255 inside xxx

location of PDM Mike 255.255.255.255 outside

location of PDM Web1 255.255.255.255 inside

PDM location 255.255.255.255 inside xxx

PDM location 255.255.255.255 inside xxx

PDM location 255.255.255.224 out xxx

PDM location 255.255.255.224 out xxx

xxx255.255.255.224 PDM location outdoors

PDM location 255.255.255.255 out xxx

location of PDM 10.1.1.153 255.255.255.255 inside

location of PDM 10.1.1.154 255.255.255.255 inside

PDM logging 100 reviews

history of PDM activate

ARP timeout 14400

Global 1 interface (outside)

NAT (inside) 1 0.0.0.0 0.0.0.0 0 0

Several static inside servers...

Access-group outside_access_in in interface outside

Route outside 0.0.0.0 0.0.0.0 Router 1

Timeout xlate 03:00

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

AAA-server local LOCAL Protocol

No snmp server location

No snmp Server contact

No trap to activate snmp Server

enable floodguard

Permitted connection ipsec sysopt

No sysopt route dnat

Crypto ipsec transform-set esp-3des esp-md5-hmac RIGHT

Crypto-map dynamic dynmap 30 transform-set RIGHT

map newmap 20-isakmp ipsec crypto dynamic dynmap

newmap outside crypto map interface

ISAKMP allows outside

ISAKMP key * address Mike netmask 255.255.255.255

ISAKMP identity address

part of pre authentication ISAKMP policy 10

ISAKMP policy 10 3des encryption

ISAKMP policy 10 md5 hash

10 2 ISAKMP policy group

ISAKMP life duration strategy 10 86400

vpngroup mycompany vpnpool address pool

vpngroup mycompany SERVER101 dns server

vpngroup wins SERVER101 mycompany-Server

mycompany vpngroup default-domain whatever.com

vpngroup idle time 1800 mycompany

mycompany vpngroup password *.

SSH timeout 15

dhcpd address 10.1.1.50 - 10.1.1.150 inside

dhcpd dns Skhbhb

dhcpd lease 3600

dhcpd ping_timeout 750

dhcpd field ljkn

dhcpd allow inside

Terminal width 80

Cryptochecksum:0e4c08a9e834d03338974105bb73355f

: end

[OK]

Firewall #.

Any ideas?

Thank you

Mike

Hi Mike,.

You are welcome at any time. Will wait for your update

Kind regards

Arul

VPN site to Site between 6.3 (3) PIX and PIX 7.0 (1)

Hi all

I am configuring a VPN site-to site between my office and a new site. This is my first time doing a real VPN site to site, in the past we have always just used MS PPTP VPN.

My office firewall is a 6.3 (3) 506th PIX running, and unfortunately this can not be upgraded to 7.0.

My new site has a pair of PIX 525 in a failover configuration, running version 7.0 (1).

The only documentation that I could find on this subject is a http://www.cisco.com/en/US/products/hw/vpndevc/ps2030/products_configuration_example09186a0080094761.shtml, which corresponds to an even earlier version of the software firewall (although orders seemed to be valid on the 6.3 software).

I ran through the VPN Wizard in the ASDM on the new firewall of sites, and the output produced in the firewall rules is not really what I expected. Commands like 'ISAKMP key' have been depreciated and replaced by "tunnel-group.

What I'm really after a pointer in the right direction for certain documents which covers this type of scenario, I can't be the only one trying the link between the different versions of PIX.

Hi M8,

In quick words, more of the config is always the same (sets of transform, ISAKMP policy, Crypto Maps and Crypto ACL).

The only thing that changes is the:

ISAKMP key * address x.x.x.x

and it is replaced by the tunnel-group command:

tunnel-group x.x.x.x type ipsec-l2l

tunnel-group ipsec-attributes x.x.x.x

pre-shared-key *.

you put the IP peer under the name of tunnel and as you can see, you will write the key in ipsec-attributes sub-mode.

I see straight forward and I think that you will find it easy once you get used to the question of the tunnel-group.

Hope that helps.

Salem.

PIX "failover reset' ignored

I'm trying to "unfail" my PIX using the above command and nothing happens. I tried to secondary education which is now active and nothing happens. I tried primary which is now on the day before and nothing happens. How can I get my primary to go active and my secondary to become pending?

Thank you

Diego

PS

I don't know why, or even when they do not have class. I just happened to check the State and realized they were in failover mode. The two seem to be OK now so I want to restore.

Hi Diego:

To make your active unit primary still once, issue the command "active failover. You should be good to go.

If it still does not work, can you please post the "show tilting' output both of the units for later analysis.

Sincerely,

Binh

DMZ and PIX failover

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