Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
New Member

Cisco ASA and PMTU-D packets issue!

Hi ALL

It is ASA 5555 in my network that is being used as vpn gateway for remote access. It is configured with SSL vpn for remote users. The issue is the users can not browse to some sites using http/https but not all sites ofcorse. I gets this syslog message: PMTU-D packet 1400 grater than effective mtu 1210, dest. xxxx, source xxxx.

Has any one som suggesions for solve the problems. Many tanks in advance!

4 REPLIES

Re: Cisco ASA and PMTU-D packets issue!

Have you tried lowering the mtu on the Asa to 1200?

Sent from Cisco Technical Support iPad App

New Member

Re: Cisco ASA and PMTU-D packets issue!

Hi

I thought about it, but this may will have impact for connection speed between end devices. Is there ther way to solve this type of problemes?

Re: Cisco ASA and PMTU-D packets issue!

No it won't. Adjust the mtu and you'll never know the difference.

Sent from Cisco Technical Support iPad App

New Member

Re: Cisco ASA and PMTU-D packets issue!

ok, Tanks. I will try to reduce the mtu to see if it can solve the problem.

381
Views
0
Helpful
4
Replies
CreatePlease to create content