With some things neutered... Cisco IOS Software, 1841 Software (C1841-SPSERVICESK9-M), Version 12.4(22)T1, RELEASE SOFTWARE (fc5) Technical Support: http://www.cisco.com/techsupport
rt-02#sh ip int brief Interface IP-Address OK? Method Status Protocol FastEthernet0/1 10.1.254.14 YES NVRAM up up rt-02#conf t Enter configuration commands, one per line. End with CNTL/Z. rt-02(config)#int fa 0/1 rt-02(config-if)#mtu ? <64-1600> MTU size in bytes rt-02(config-if)#mtu 1600 rt-02(config-if)#end rt-02#sh run int fa 0/1 Building configuration... Current configuration : 239 bytes ! interface FastEthernet0/1 mtu 1600 Thanks, Erik -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Peter Rathlev Sent: Wednesday, August 26, 2009 2:41 PM To: Justin Shore Cc: [email protected] Subject: Re: [c-nsp] cisco router 2800/3800 serie On Wed, 2009-08-26 at 13:00 -0500, Justin Shore wrote: > I'm suspect that the interface MTU of the 1841 may not go above 1500. It's even worse, it doesn't seem to support MTU != 1500 at all on the built in FE interfaces. Router(config-if)#do sh ip int bri Interface IP-Address OK? Method Status Protocol FastEthernet0/0 10.251.9.5 YES NVRAM up up FastEthernet0/1 unassigned YES NVRAM administratively down down ATM0/0/0 unassigned YES NVRAM down down Router(config-if)#int fa0/0 Router(config-if)#mtu 1501 % Interface FastEthernet0/0 does not support user settable mtu. Router(config-if)#int fa0/1 Router(config-if)#mtu 1501 % Interface FastEthernet0/1 does not support user settable mtu. Router(config-if)#do sh ver | incl IOS Cisco IOS Software, 1841 Software (C1841-BROADBAND-M), Version 12.4(1a), RELEASE SOFTWARE (fc2) Router(config-if)# Outdated IOS but this MTU thingy probably hasn't changed. Regards, Peter _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
