IPX/GRE/MTU

From: Stefano Lassi (stefano_lassi@hotmail.com)
Date: Thu Sep 26 2002 - 05:37:35 GMT-3


Hallo guys

I know some problems about MTU arrangement about IP and GRE tunnel.

Do you know/have got problems about IPX/GRE and MTU?:

I have got two token ring networks connected via GRE tunnel running on a
FastEthernet/MPLS carrier cloud (TR MTU=4476, Eth MTU=1500).
On Cisco routers, Windows 2K, OS/2, RIP and SAP tables are OK, all works
fine,

but, some Windows NT and 9x Netware client get very very long logon
procedures (10 min ...), then if time outs have not got trouble,
connection go fine (they can get file, print, ...)

looking with <ipxroute servers /type=278> command on a NT machine SAP
local service has got no NDS server entry in his table... (but 278
entries are present on Cisco table)

Problem arised changing old HDLC connection to new GRE/Tunnel (on
FE/MPLS)

 

ciao and thanks

Stefano Lassi

CCNP/CCDP/MCSE/CCA

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