VPN/RDP problemS

Answered Question

hi,


forgive me for my poor english and happy new year all !!


here my problem :



LAN1==Server2003RDP1==1Cisco831----Internet----2Cisco831==Server2000RDP2==LAN2



I can use RDP between the two server without pb, I can use RDP between LAN2 and RDP1

but i can't use RDP between lan1 and RDP2.


I used the ping -f -l command to troobleshoot and i enter on the 1cisco the command:

crypto ipsec df-bit clear and then i can use rdp between lan1 and RDP2 but the rdp between

LAN2 and RDP1 now dont works (but the RDP between serveur works in the 2 direction).


i am looking for a "simple" description of what to do when their are MTU problem (because i think its

mtu problem here) in a L2L VPN. i mean do :


ping XXX.XXX.XXX.XXX -l 1460 -f

and

ping XXX.XXX.XXX.XXX -l 1450 -f


When the ping reply :


ip mtu XXXX (does it help ? on what interface ?)

or


ip tcp adjust-mss XXX (does it help ? on what interface ?)


I don't knows if i have been clear, thanks for help

Correct Answer by ebreniz about 9 years 4 months ago

On Cisco routers, use the ip mtu command to adjust the MTU size on the interface where the VPN is terminated. On ASA/PIX devices, use the mtu command to adjust the MTU size in global config mode. Following links may help you

http://www.cisco.com/en/US/products/hw/routers/ps4081/products_tech_note09186a0080094268.shtml

http://www.cisco.com/en/US/products/ps6120/products_configuration_example09186a008081e621.shtml

  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 4.5 (2 ratings)
Loading.
Correct Answer
ebreniz Mon, 12/31/2007 - 13:19
User Badges:
  • Silver, 250 points or more

On Cisco routers, use the ip mtu command to adjust the MTU size on the interface where the VPN is terminated. On ASA/PIX devices, use the mtu command to adjust the MTU size in global config mode. Following links may help you

http://www.cisco.com/en/US/products/hw/routers/ps4081/products_tech_note09186a0080094268.shtml

http://www.cisco.com/en/US/products/ps6120/products_configuration_example09186a008081e621.shtml

Actions

This Discussion