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Tunnel is not forming between Hub and spoke

Hi

i am trying to set up a tunnel connection between twO 2800 routers A<->B

1) destination  ip is-204.x.x.x-ROUTER A
2) source  ip is 166.x.x.22-ROUTER B

The router B has the modem connected to GE0/1 whose interface ip is 166.x.x.22

The ip-forward-protocol nd is configured as  below

ip route 204.x.x.x 255.255.255.255 166.x.x.21

Also tunnel 1 configuration,isakmp policy are configured properly

when i run show crypto isakmp sa it shows MM_NO_STATE,i checked the preshared key on both ends and they are same.
whenever i remove the ip address of the interface Ge0/0 and ip route i can ping the 166.x.x.21  which is the modem gateway.
when i revert back the configuration to the above ,the ip 166.x.x.21 cannot be pinged,the dsl connection is live though.

Please suggest ways to fix this so that i can make this tunnel state to QM_IDLE

1 REPLY

Re: Tunnel is not forming between Hub and spoke

check your nat config

Sent from Cisco Technical Support iPad App

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