mtu

  • Thread starter Thread starter Simon
  • Start date Start date
S

Simon

I've got a quick question. We've got some VPN users
having problems
connecting to a citrix server due to the mtu sizes.
Packets from the server
are 1460 and the maximum packet size accepted by the VPN
users is 1400.
When the client receives a packet with the
defragmentation bit set it tries
to send an ICMP packet back to the server requesting
fragmentation, however
there is a firewall blocking this.

Do you know how to set the df bit on or off for the
server NIC (W2K)?
 
You cannot. You will need to either lower the MTU on the VPN server or allow
the ICMP traffic through.

--

Thanks,
Marc Reynolds
Microsoft Technical Support

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