Remote Desktop on Site-to-Site

Unanswered Question
Feb 27th, 2007

Hi All,

I'm having a bit of problem with my Pix Site-to-Site VPN

Basically the tunnel is created i can ping on both ends but when i do remote desktop it fails

Appreciate the help

I attached my config file

I have this problem too.
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Kamal Malhotra Wed, 02/28/2007 - 02:49


Please run a ping test from host to host using the following command :

ping -l 1500 -f

you should get

Packet needs to be fragmented but DF set

Keep lowering the packet size by 100 and see where you start getting the responses. Once you know thw packet size at which you are successfully able to ping, configure the following command on the PIX

sysopt connection tcpmss

and make sure to configure the mtu/mss value on the other end device also. If the other end is a PIX then the command remains the same. Please be informed that this setting will be applicable for the new tunnel so might want to manually clear the SAs ans test.

Please let me know how it goes.


Please rate if it helps,




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