[c-nsp] Tunnel keepalive in NAT environment problem

[Varaillon Jean Christophe]

Hi

For the tunnel to be operational, each router should be able to reach the
destination IP of the tunnel from the source IP of the tunnel (extended ping
command will help you).

When this is done, meaning, ping from IP source of the tunnel to IP
destination of the tunnel works, then you can set-up your keepalive
functionality.

Christophe
-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Darren Yang
Sent: Tuesday, November 18, 2008 12:23 PM
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] Tunnel keepalive in NAT environment problem

Hi All,

Because Cisco GRE tunnel keepalive mechanism that must have public IP
on both site.
But I have one Router in NAT environment  that it's ip address is
private IP address and another outside Router is public IP address, so
when I configure "keepalive" on tunnel interface, the tuneel interface
would show "line protocol down" message directly....

If anyone have idea about this ?

Thanks :)

pigsign
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__________ Information from ESET Smart Security, version of virus signature
database 3620 (20081118) __________

The message was checked by ESET Smart Security.

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