[cisco-bba] FW: Static NAT translation over IPSEC tunnel - PIX 6.3

[Mounir Mohamed]

Dear Michael,

I think your debug output get nothing because the NAT happen after the IPSEC
tunnel intiation failed, mainly routing happen first then NAT, if the
outgoing interface is the outside one NAT take action, so when ur private
subnet trying to intiate traffic toward remote vpn the traffic arrived on
the PIX interface as private address, then trying to intiate the IPSEC
tunnle then it's failed because the source address doesn't found on the
interisting traffic ACL (global-vpn).

If am wrong anybody can correct me :)

Best Regards,
Mounir Mohamed


On 12/11/06, Michael G. Jung <mikej at confluenttech.com> wrote:
>
>
> I have several tunnels up and operational on a old PIX-520 running 6.3
> (4)120
>
> I want to establish a new tunnel, but I want to static xlate my inside
> address to a real world address, and  have the destination host see my
> traffic as sourced from the NAT'd address.
>
> So I've build a access-list for interesting traffic for the tunnel, built
> by static and have not specified the interesting traffic in my NAT-0
> access-list that I use for other tunnels.   I've turned up debug crypto
> isakmp  on the pix but I don't see any initiation.
>
> My inside host  on interface DMZ is 172.0.255.15 which  is NAT'd to
> 216.26.153.12.
>
> So I want 172.0.255.15 to connect to the remote host 172.30.21.216presenting itself as sourced from the  nat'd address
> 216.26.153.12.
>
> Here is what I think is relevent.
>
> ip address outside 216.26.153.4 255.255.255.128
> ip address dmz 172.0.255.1 255.255.255.0
>
> access-list global-vpn permit ip host 216.26.153.12 host 172.30.21.215
>
>
> static (dmz,outside) 216.26.153.12 172.0.255.15 netmask 255.255.255.255 0
> 0
>
> sysopt connection permit-ipsec
>
>
> crypto ipsec transform-set global-vpn esp-3des esp-md5-hmac
>
> crypto map outside 212 ipsec-isakmp
> crypto map outside 212 match address global-vpn
> crypto map outside 212 set peer not.my.real.ip
> crypto map outside 212 set transform-set global-vpn
>
> crypto map outside interface outside
>
> isakmp enable outside
> isakmp key ******** address not.my.real.ip netmask 255.255.255.255
> isakmp identity address
>
> isakmp policy 100 authentication pre-share
> isakmp policy 100 encryption 3des
> isakmp policy 100 hash md5
> isakmp policy 100 group 2
> isakmp policy 100 lifetime 86400
>
>
>  Any ideas, am I approaching this correctly with the static and not using
> nat0 for 216.26.153.12<->172.30.21.215?
>
> Thanks for any suggestions.
>
> --mikej
> Michael Jung
>
>
>
> _______________________________________________
> cisco-bba mailing list
> cisco-bba at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-bba
>
>
>


-- 
Best Reagrds,
Mounir Mohamed
-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://puck.nether.net/pipermail/cisco-bba/attachments/20061212/bc21299f/attachment.html