PAT on IPSEC VPN (Pix 501)

Hello

I work to connect a PIX 501 VPN for a 3rd party hub 3015. The hub requires all traffic to come from a single source IP address. This IP address is assigned to me as z.z.z.z. I have successfully built the VPN and tested by mapping staticly internal IP with the IP address assigned, but cannot get the orders right to do with PAT in order to have more than one computer on the subnet 10.x.x.0. This Pix is also a backup for internet routing and NAT work currently as well for this.

I can redirect traffic to my subnet to the remote subnet via the VPN, but I can't seem to get the right stuff PAT to the VPN using the assigned IP address. If anyone can give me some advice that would be great.

lines of current config interesting configuration with static mapping:

--------------------------------------------------------------------------

access-list 101 permit ip 10.0.0.0 255.255.255.0 y.y.y.0 255.255.255.0

access-list 102 permit ip y.y.y.0 255.255.255.0 z.z.z.z host

access-list 103 allow host ip y.y.y.0 255.255.255.0 z.z.z.z

IP address outside w.w.w.1 255.255.255.248

IP address inside 10.0.0.1 255.255.255.0

Global 1 interface (outside)

NAT (inside) - 0 102 access list

NAT (inside) 1 0.0.0.0 0.0.0.0 0 0

public static z.z.z.z (Interior, exterior) 10.x.x.50 netmask 255.255.255.255 0 0

Route outside 0.0.0.0 0.0.0.0 w.w.w.2 1

correspondence address card crypto mymap 10 103

mymap outside crypto map interface

ISAKMP allows outside

Thank you!

Dave

Dave,

(1) get rid of static electricity. Use more Global/NAT. The static method will create a permanent

translation for your guests inside and they will always be this way natted. Use

NAT of politics, on the contrary, as shown here:

not static (inside, outside) z.z.z.z 10.x.x.50 netmask 255.255.255.255 0 0

Global (outside) 2 z.z.z.z netmask 255.255.255.255

(Inside) NAT 2-list of access 101

(2) the statement, "nat (inside) access 0 2' list will prevent nat of your valuable traffic."

Delete this because you need to nat 2 nat/global card. (as a general rule, simply you

If you terminate VPN clients on your device and do not want inside the traffic which

is intended for the vpn clients to be natted on the external interface).

(3) with the instructions of Global/nat 2, all traffic destined for the remote network will be first

translated into z.z.z.z. Then your card crypto using the ACL 103 will encrypt all traffic which

sources of z.z.z.z for y.y.y.0 24. This translation wil happen only when traffic is destined for the vpn.

I hope this helps. I have this work on many tunnels as you describe.

Jamison

Tags: Cisco Security

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    Outside_map map (ERR) crypto set peer 200.20.10.3

    WARNING: This encryption card is incomplete

    To remedy the situation even and a list of valid to add this encryption card

    Hi garcia

    for each vpn/peer, you need to a separate instance of crypto card, the card will have the same name, but different sequence... numbers one map encryption can be attributed to an interface, but you can have several instance of cards inside a main...

    for configuration, you can go through the URL below... It has all the details on IPSEC config:

    http://www.Cisco.com/univercd/CC/TD/doc/product/iaabu/PIX/pix_sw/v_63/config/ipsecint.htm

    I hope this helps... all the best... the rate of responses if deemed useful...

    REDA

  • 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.

  • 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

  • PIX 501 and VPN Linksys router (WRV200)

    I inherited a work where we have a Cisco PIX 501 firewall to a single site and Linksys WRV200 Router VPN on two other

    sites. Asked me to connect these routers Linksys firewall PIX via the VPN.

    According to me, the Linksys vpn routers can only connect via IPSec VPN, I'm looking for help on the configuration of the PIX 501 for the linksys to connect with the following, if possible.

    Key exchange method: Auto (IKE)

    Encryption: Auto, 3DES, AES128, AES192, AES256

    Authentication: MD5

    Pre Shared Key: xxx

    PFS: Enabled

    Life ISAKMP key: 28800

    Life of key IPSec: 3600

    The pix, I installed MDP and I tried to use the VPN wizard without result.

    I chose the following settings when you make the VPN Wizard:

    Type of VPN: remote VPN access

    Interface: outside

    Type of Client VPN device used: Cisco VPN Client

    (can choose customer of Cisco VPN 3000, MS Windows Client by using the client MS Windows using L2TP, PPTP)

    VPN clients group

    Name of Group: RabyEstates

    Pre Shared Key: rabytest

    Scope of the Client authentication: disabled

    Address pool

    Name of the cluster: VPN - LAN

    Starter course: 192.168.2.200

    End of row: 192.168.2.250

    Domain DNS/WINS/by default: no

    IKE policy

    Encryption: 3DES

    Authentication: MD5

    Diffie-Hellman group: Group 2 (1024 bits)

    Transform set

    Encryption: 3DES

    Authentication: MD5

    I have attached the log of the VPN Linksys router VPN.

    This is the first time that I have ever worked with PIX so I'm still trying to figure the thing to, but I'm confident with the CCNA level network.

    Thanks for your help!

    Hello

    Everything looks fine for me, try to have a computer in every network and ping between them. Check the newspapers/debug and fix them.

    Let me know.

    See you soon,.

    Daniel

  • VPN site-to-site between two PIX 501 with Client VPN access

    Site A and site B are connected with VPN Site to Site between two PIX 501.

    Also, site A is configured for remote access VPN client. If a remote client connects to Site A, it can only get access to the LAN of Site A, it cannot access anything whatsoever behind PIX on Site B.

    How is that possible for a VPN client connected to Site A to Site B?

    Thank you very much.

    Alex

    Bad and worse news:

    Bad: Not running the 7.0 series PIX cannot route traffic on the same interface, the traffic is recived. Version 7.0 solves this ipsec traffic.

    Even worse: PIX 501 can not be upgraded to 7.0...

    A couple of things to think about would be the upgrade to hardware that can run the new IOS or allowing a VPN R.A. on site B.

    HTH Please assess whether this is the case.

    Thank you

  • Customer Cisco PIX 501 VPN connects but no connection to the local network

    Hi all:

    I am able to make a VPN connection to a PIX 501. The remote client is assigned an IP (192.168.2.1) also, but not able to access all the machines in the local network connected to the PIX.

    I have attached the PIX configuration.

    Advice will be greatly appreciated.

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

    6.3 (5) PIX version

    interface ethernet0 car

    interface ethernet1 100full

    ethernet0 nameif outside security0

    nameif ethernet1 inside the security100

    enable password xxxx

    passwd xxxxx

    pixfirewall hostname

    domain ciscopix.com

    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 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

    access-list 101 permit ip 192.168.1.0 255.255.255.0 192.168.2.0 255.255.255.0

    access-list 102 permit ip 192.168.1.0 255.255.255.0 192.168.2.0 255.255.255.0

    pager lines 24

    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

    IP local pool ippool 192.168.2.1 - 192.168.2.5

    location of PDM 192.168.2.0 255.255.255.0 outside

    PDM logging 100 information

    history of PDM activate

    ARP timeout 14400

    Global 1 interface (outside)

    NAT (inside) - 0 102 access list

    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: 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

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

    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

    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

    Permitted connection ipsec sysopt

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

    Crypto-map dynamic dynmap 10 transform-set RIGHT

    map mymap 10-isakmp ipsec crypto dynamic dynmap

    mymap outside crypto map interface

    ISAKMP allows outside

    ISAKMP identity address

    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

    vpngroup vpn3000 ippool address pool

    vpngroup vpn3000 Server dns 68.87.72.130

    vpngroup vpn3000-wins 192.168.1.100 Server

    vpngroup vpn3000 split tunnel 101

    vpngroup vpn3000 downtime 1800

    password vpngroup vpn3000 *.

    Telnet timeout 5

    SSH timeout 5

    Console timeout 0

    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:xxxx

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

    The DNS server is the one assigned to me by my ISP.

    My internal network connected to the PIX is 192.168.1.1 - 192.168.1.33 and the VPN ip pool is 192.168.2.1 - 192.168.2.5

    "isakmp nat-traversal 20" can do the trick.

  • A PIX 501 can connect to a VPN service?

    Can a PIX 501 6.3 (4) establish a VPN to a supplier like www.privateinternetaccess.com?  They claim to support PPTP and L2TP/IPSEC.  If so, how the PIX should be configured?

    Thank you.

    No, none of the networking gear (Inc. ASA) can be configured as PPTP and L2TP over IPSec client client.

    Both are PC or MAC software.

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