Hi all,
I "inherited" a router setup that has a VPN connection to one of our remote sites. I am at a loss to understand why the old administrator used the MTU that he did, and I hope someone here can explain it to me. This router has a frame-relay connection to the internet (MTU 1500) with a VPN Tunnel that has the IP MTP set to 1600. Shouldn't that be somewhere closer to 1460?
Thanks,
-Zach
Config follows: interface Tunnel0 bandwidth 1536 ip address 192.168.X.X 255.255.255.252 ip mtu 1600 ip ospf message-digest-key 1 md5 7 AEFF2234234079BCDE3 tunnel source 157.130.X.X tunnel destination 157.130.X.X crypto map gre
interface Serial0/0 no ip address encapsulation frame-relay IETF no fair-queue frame-relay lmi-type ansi ! interface Serial0/0.1 point-to-point bandwidth 1536 ip address 157.130.X.X 255.255.255.252 ip access-group AccessIn in no cdp enable frame-relay interface-dlci 666 IETF crypto map gre