GRE keepalives are not supported.
You'd need to use some dynamic protocol , OSPF for instance, and build
GRE tunnels based on the dynamically learned addresses (loopback for
instance), if you want to achieve some sort of dynamic GRE tunnel.
On 2/23/09 12:52 AM, Stefan Fouant wrote:
I second the previous email but add that you should make sure you
enable GRE keepalives for quick resolution of downed tunnel status.
Regards,
On 2/22/09, Kevin Loch<[email protected]> wrote:
Fatiha HOUACINE wrote:
Hi,
I would like to configure a GRE tunnel between two couples of VRRP
redundant routers ,
The problem is that, I can't Use the Virtual IP to build on the tunnel.
How can I build my GRE in this case, to detect faillure and interact with
the VRRP mecanism.
O ______________________ O
VRRP ________*GRE*__________ VRRP
O O
I don't think you can use the vrrp ips as tunnel endpoints but
you could setup two tunnels and use OSPF for failover. Just make sure
you have static routes for the tunnel endpoints so the ospf learned
routes don't take down the tunnels :)
- Kevin
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