MSN blocking PMTUD

["Miguel Mata-Cardona" <mmata () intercom com sv>]

Hi, it seems that Microsoft Network is blocking the path MTU 
discovery (ICMP fragmentation required but df bit set).

That is causing problems because some customers who happen to 
use GRE tunnels for their branch offices can't access MSMessenger 
of the Hotmail page.

Is there somebody from MSN here? Is there a workaround for this 
problem without using other type of tunneling? If not, is there any 
other workaround?


-- 
Miguel Mata-Cardona
Intercom El Salvador
mmata () intercom com sv
voz: ++(503) 278-5068
fax: ++(503) 265-7024