SSH Not Working Even After Configuration

[ArthurSmith94146]

Hi all,

I'm currently trying to get ssh working on my Cisco router. I've followed every ssh configuration guide I could find but nothing seems to work. I run:

// sets ssh
(config)#line vty 0 4

// requires password using locally defined credentials
(config-line)#login local

// sets inactivity timer to 3 minutes
(config-line)#exec-timeout 3

// deifnes a group of lines
(config-line)#rotary 1

// sets ssh instead of telnet
(config-line)#transport input ssh

// generates ssh keys (choose 2048 bits)
(config)#crypto key generate rsa

// sets ssh version
(config)#ip ssh version 2

// changes port for ssh
(config)#ip ssh port 2222 rotary 1

However, whenever I try to ssh into the router it just throws the error "Network is unreachable." I can ping the router, was able to telnet into the switch before, SSH onto other devices on my LAN, and login to console with login local so I know all of that isn't the issue.

I Nmap'd the router and found that port 2222 wasn't open. In  my testing, I discovered that for some reason when I set the port to anything not ending in **00 the port isn't open. However, when I set it to 9000, 9900, 10000, etc. it does work.

Here's my lines:

Router#show line

   Tty Typ     Tx/Rx    A Modem  Roty AccO AccI   Uses   Noise  Overruns   Int
*     0 CTY              -    -      -    -    -      0       0     0/0       -
      1 TTY              - inout     -    -    -      0       0     0/0       -
      5 AUX   9600/9600  -    -      -    -    -      0       0     0/0       -
      6 VTY              -    -      1    -    -      0       0     0/0       -
      7 VTY              -    -      1    -    -      0       0     0/0       -
      8 VTY              -    -      1    -    -      4       0     0/0       -
      9 VTY              -    -      1    -    -      0       0     0/0       -
     10 VTY              -    -      1    -    -      0       0     0/0       -

Line(s) not in async mode -or- with no hardware support: 
2-4

I'm just not sure what else could be the issue so I won't provide any other config, but I'd be more than happy to provide other config.

Thanks in advance, Arthur

[balaji.bandi]

Can you postbelow output along with VTY and (any ACL in place ?)

#show tcp vty 0

Try below :

ip ssh port 2222 rotary 1

!

line vty 0 15

rotary 1

[ArthurSmith94146]

Hi Balaji,

When I run #show tcp vty 0 (or any other vty lines) there is no output, just a blank line.

When I run the code you gave it just has the same effect of the "network unreachable" error. However the port does appear open.

Thanks, Arthur

[Richard Burts]

Arthur

Would you post the output of the command show ip ssh