Using VPN clients behind a NAPT router..

[bas95]

Hi,

I like to connect 2 Cisco VPN clients (3.6.3) behind the same NAPT router (speedtouch 515) to a Cisco PIX 515 with IOS 6.3.

I can connect one client without any problem, but if I startup the second client I receive the message "Peer not responding" If I close the first client it is possible to connect the second client.

So only one IPSec connection at one time is allowed.

I know it's better to setup a Router to Firewall VPN connection. But unfortunaly this router does not support this.

Any idea...??

Thanks,

Bastiaan van Utrecht
Shimano Europe

 

[mdaddy]

On the PIX I do you have the isakmp nat-traversal command entered enabling you to encapsulate ipsec in UDP packets, allowing you to connect behind NAT boxes. Also you will need to have this setting checked on the client itself