cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
343
Views
5
Helpful
2
Replies

ip tcp adjust-mss: unrecognized command

mario.laniel
Level 1
Level 1

I need to use that commands to lower maximum segment size but I tried multiple 12.2(#) versions but I can not seems to find one that support that command. Does anyone have a clue?

Thanks everyone.

Mario

2 Replies 2

nsteup
Level 1
Level 1

Hi Mario,

take a look a following Posting:

5.Configure an IP address and subnet mask on the Cisco 827 Ethernet interface.

(Optional) Enable NAT inside on the Ethernet interface.

Router#configure terminal

Router(config)#interface ethernet 0

Router(config-if)#ip tcp adjust-mss 1452

!--- If the ip tcp adjust-mss 1452 command is not supported, try

!--- ip adjust-mss 1452. If this command is not supported,

!--- upgrade to the latest Cisco 827 software or follow the

!--- procedure in the Possible Required Configuration Steps on the PC.

Router(config-if)#ip address

Router(config-if)#ip nat inside

Router(config-if)#no shut

Router(config-if)#end

I did the command on several IOS-Versions 12.2.1 to 12.2.10 on Routers 806 with IPsec-FW-Software. Never had a problem to adjust the segment-size for DSL-Connections. If your Software is able to provide PPPoE, then you MUST be able to adjust your mss.

Hope this helps

Kind Regards

Norbert

Thanks for the quick response, I downloaded 12.2(4T) and the command is now supported.

Regards,

Mario