Solved

MTU Sze Issue on atm0, atm0.1 and Dialer1 Interface

Posted on 2009-05-19
3
461 Views
Last Modified: 2012-08-13
HI Team,
Can soem one pelase assist me in an MTU Issue i am having.
I have configured and Cisco ROuter and that conencts to Internet OK , VPNs are working OK, perfactly fine except Microsoft websites do lot load.
Thinking it it the MTU issue, I have decreased teh MTU Size on Dialer1 Interface to 1356 but Issue has not been resolved.

I have also Noticed 3 Different MTU SIzes configured on the below interfaces.

MTU on ATM0: 1500 Bytes
MTU ATM0.1: 1500 Mytes
MTU on Dialer1: 1356 Bytes

Can you please tel me which MTU size should be chnaged OR Which MTU Size is Important.
ROuter is Cisco 837 and had atm0 Interface and atm0.1 was created and Dialer1 is Interfaces configured with ISP dettings.

As i stated Every thing else works perfact except Microsoft website and www.ninemsn.com.au websites.

Thanks Heaps for Urgent assistance.

0
Comment
Question by:tariqmansoor
  • 2
3 Comments
 
LVL 8

Accepted Solution

by:
ludo_friend earned 500 total points
ID: 24428414
for the purposes of this exercise, dialer1 is the only one there that really matters...

try adding
ip tcp adjust-mss 536
to dialer 1
if this makes them work then you can wind the mss back up to 1316 (536 is the minimum mss)

0
 

Author Comment

by:tariqmansoor
ID: 24428779
That Certaily Did ...:: worked.
I added that command to LAN interface instead of Dialer1 and that worked

Thanks for that, Just wondering why setting the same MTU ( 1372 per say)  size on Dialer 1 did not worked and setting it via teh above command worked.

Thanks,
0
 

Author Closing Comment

by:tariqmansoor
ID: 31583341
Thanks,
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Connecting LAN to a new leased line 2 55
Can't remote with RDC through ASUS RT-N66W Router 3 67
Read-only SNMP string example ? 7 90
Classlful vs Classless subneting 18 70
Managing 24/7 IT Operations is a hands-on job and indeed a difficult one. Over the years I have found some simple tips and techniques to increase the efficiency of the overall operations. The core concept has always been on continuous improvement; a…
In the hope of saving someone else's sanity... About a year ago we bought a Cisco 1921 router with two ADSL/VDSL EHWIC cards to load balance local network traffic over the two broadband lines we have, but we couldn't get the routing to work consi…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…

809 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question