IOS version

Answered Question
Feb 25th, 2009

Hi there i would like to know if the 2811 and 2801 has the same IOS (meaning if i have the one IOS it will work for both) and how am i going to update it in one of these?

Thanks in advance

Correct Answer by adamclarkuk_2 about 8 years 3 days ago

Yes it should be fine.


If you want clarification and you have an IOS version, you can check it on the software advisor under the support tab on cisco.com


http://tools.cisco.com/Support/Fusion/FusionHCHome.do?mySession=6540146&myStep=2

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ekatscisco Thu, 02/26/2009 - 01:59

Thanks for answering my friend but as i saw the IOS's are different :( . Thanks a lot for the link very usefull tool that i did not knew.

Joseph W. Doherty Thu, 02/26/2009 - 06:10

"Hi there i would like to know if the 2811 and 2801 has the same IOS (meaning if i have the one IOS it will work for both) . . ."


Not always. The 2811 seems to have a 12.4SW that the 2801 doesn't. The 2801 seems to have a 12.3YT that the 2811 doesn't. For same version trains, they're not always both at the same release, e.g. 2801 12.4.15-XY5 vs. 2811 12.4.15-XY3.


I also found, even when the version/release is the same, actual features can be different. E.g. 2811 can support Etherchannel, 2801 doesn't.


". . . how am i going to update it in one of these? "


You load the software of your choice on the flash (assuming you have sufficient flash and RAM to support it) then boot into it. (The software can be downloaded from Cisco's web site if you have an active maintenance account.)

Leo Laohoo Thu, 02/26/2009 - 14:23

". . . how am i going to update it in one of these? "


Depends on the situation, but I have a 2Gb USB flash drive for situations like this.

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