Re: mtu mis-match

[Michael Holstein <michael.holstein () csuohio edu>]

> but I still don't know why mtu can cause this problem
>   

Blocking ICMP (specifically type 3,code 4) can also cause this .. 
because it breaks path MTU discovery (pmtud).

The first part of this doc helps explain the issue :

http://www.cisco.com/warp/public/105/pmtud_ipfrag.html

Cheers,

Michael Holstein
Cleveland State University