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05.02.2007 at 12:14PM PDT, ID: 22548572
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9.4

Setting up a B2B  VPN Tunnel with PAT

Asked by rgomez101 in IPSec Security Protocol, Virtual Private Networking (VPN), Cisco PIX Firewall

Tags: ,

Hi,

I was asked to set up a new site-to-site VPN Tunnel with one of our associates. I have their IP address and the subnet class C that we need access to.

I told them that our Internal Class C will have to have access to their end, but told me that 254 IP address was too much.

Now, they said I need to PAT my addresses into one single IP.  How do I that inside of the VPN Tunnel ?

This is my initial config:

      access-list inside_nat0_outbound line 3 extended permit ip host 192.168.0.69 14.x.8.0 255.255.255.0
      access-list inside_nat0_outbound line 4 extended permit ip host 192.168.1.59 14.x.8.0 255.255.255.0
      access-list inside_nat0_outbound line 5 extended permit ip 192.168.3.0 255.255.255.0 14.x.8.0 255.255.255.0
      nat (inside) 0 access-list inside_nat0_outbound
      tunnel-group TXF type ipsec-l2l
      tunnel-group TXF ipsec-attributes
        pre-shared-key mykey
        isakmp keepalive threshold 10 retry 2
      access-list outside_cryptomap_20 extended permit ip host 192.168.0.69 14.x.8.0 255.255.255.0
      access-list outside_cryptomap_20 extended permit ip host 192.168.1.59 14.x.8.0 255.255.255.0
      access-list outside_cryptomap_20 extended permit ip 192.168.3.0 255.255.255.0 14.x.8.0 255.255.255.0
      crypto map tor_hydro_map 20 set connection-type bidirectional
      crypto map tor_hydro_map 20 set peer 14.x.32.6
      crypto map tor_hydro_map 20 match address outside_cryptomap_20
      crypto map tor_hydro_map 20 set transform-set ESP-3DES-SHA
      crypto map tor_hydro_map 20 set security-association lifetime seconds 28800 kilobytes 4608000
      no crypto map tor_hydro_map 20 set nat-t-disable
      no crypto map tor_hydro_map 20 set reverse-route
      crypto map tor_hydro_map 20 set phase1-mode main
      crypto map tor_hydro_map 20 set inheritance rule
      crypto map tor_hydro_map interface outside
      sysopt connection permit-ipsec


Thanks for your help.
R

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[+][-]05.02.2007 at 04:50PM PDT, ID: 19020159

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About this solution

Zones: IPSec Security Protocol, Virtual Private Networking (VPN), Cisco PIX Firewall
Tags: b2b, vpn
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Solution Provided By: lrmoore
Participating Experts: 1
Solution Grade: A
 
 
 
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