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Cannot access yahoo after tunnel

nshirabakwaku
Level 1
Level 1

Hello all,

I have a funny problem and it is taking up my whole time.

I am doing a hub and spoke network through and ipsec vti.

after  I have done the configurations, all works well but funny enough, I  cannot access yahoo or cisco from the spoke. All other access to the  internet works well without any problems. The only issue is that, I  cannot access www.yahoo.com and www.cisco.com when the traffic goes  through the tunnel.

Have anybody experienced this before?

PS there are no access-list blocking the traffic.

Could this be a BUG

1 Reply 1

Eugene Khabarov
Level 7
Level 7

No, it is not a bug.

Most likely you have PMTU discovery ptoblem.

Yty to lower you MSS on interface to 1300:

int X/Y

ip tcp adjust-mss 1300

http://www.cisco.com/en/US/docs/ios/12_2t/12_2t4/feature/guide/ft_admss.html

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