[afnog] changing ssh port on a cisco router

joseph mpora klashniv at gmail.com
Wed Jul 20 13:47:28 UTC 2011


When I tried:

ip ssh port 2222 rotary 1
line vty 0 4
 rotary 1

I can log into the router using both port 22 and 2222. I want to block
access to ssh on port 22, so that only connections to port 2222 are
accepted.

Joseph

On Wed, Jul 20, 2011 at 4:41 PM, Shake Righa <shake.righa at gmail.com> wrote:
> Joseph,
> Kindly try at the config mode
> ip ssh port <new port> rotary 1  >>>>>>>>>. where new port is where you want
> ssh to accept connections on
> Router(config)# ip ssh port 2011 rotary 1
> Router(config)#line vty 0 4
> Router(config-line)#rotary 1
>
> Regards,
> Shake Righa
>
>
> On Wed, Jul 20, 2011 at 4:32 PM, joseph mpora <klashniv at gmail.com> wrote:
>>
>> Dear All,
>>
>> Am having trouble changing the port SSH listens on a cisco router. I
>> have been able to get it to listen on port 2000 but connections to
>> port 22 are also accepted.
>>
>> I would like to only allow ssh connections on port 2000.
>>
>> Below are the configs an using:
>>
>> ip ssh port 2000 rotary 1
>> line con 0
>> line aux 0
>> line vty 0 4
>>  rotary 1
>>  transport preferred ssh
>>  transport input ssh
>>  transport output ssh
>> line vty 5 807
>>  rotary 1
>>  transport input ssh
>>
>> Additional Information:
>>
>> Cisco IOS Software, 2801 Software (C2801-SPSERVICESK9-M), Version
>> 12.4(24)T4, RELEASE SOFTWARE (fc2)
>> ROM: System Bootstrap, Version 12.3(8r)T9, RELEASE SOFTWARE (fc1)
>> System image file is "flash:c2801-spservicesk9-mz.124-24.T4.bin"
>>
>> Please let me know if what am trying to do is achievable and how it can be
>> done.
>>
>> Thank you.
>>
>> Regards,
>> Joseph Mpora
>>
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>
>



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