Custom Port

SSH connection test with custom port configuration. Tests that SSH server correctly uses the configured port and rejects connections on the default port when a custom port is configured.

SSH Connection Failure on Default Port

Description

SSH connection should fail on default port 22 when server is configured for port 3100.

Scenario

Step 1: Set the following configuration in DUT0 :

set interfaces ethernet eth0 address 10.215.168.20/24
set service ssh port 3100
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'

Step 2: Set the following configuration in DUT1 :

set interfaces ethernet eth0 address 10.215.168.21/24
set service ssh
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'

Step 3: Ping IP address 10.215.168.20 from DUT1:

admin@DUT1$ ping 10.215.168.20 count 1 size 56 timeout 1
Show output
PING 10.215.168.20 (10.215.168.20) 56(84) bytes of data.
64 bytes from 10.215.168.20: icmp_seq=1 ttl=64 time=0.329 ms

--- 10.215.168.20 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.329/0.329/0.329/0.000 ms

Step 4: Init an SSH connection from DUT1 to IP address 10.215.168.20 with the user admin which is going to fail:

admin@DUT1$ ssh admin@10.215.168.20 option StrictHostKeyChecking=no option UserKnownHostsFile=/dev/null
Show output
ssh: connect to host 10.215.168.20 port 22: Connection refused
  CLI Error: Invalid token [option]
  CLI Error: Command error
admin@osdx$

SSH Connection Success on Custom Port

Description

SSH connection should succeed on custom port 3100 when server is configured for port 3100.

Scenario

Step 1: Set the following configuration in DUT0 :

set interfaces ethernet eth0 address 10.215.168.20/24
set service ssh port 3100
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'

Step 2: Set the following configuration in DUT1 :

set interfaces ethernet eth0 address 10.215.168.21/24
set service ssh
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'

Step 3: Ping IP address 10.215.168.20 from DUT1:

admin@DUT1$ ping 10.215.168.20 count 1 size 56 timeout 1
Show output
PING 10.215.168.20 (10.215.168.20) 56(84) bytes of data.
64 bytes from 10.215.168.20: icmp_seq=1 ttl=64 time=0.420 ms

--- 10.215.168.20 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.420/0.420/0.420/0.000 ms

Step 4: Init an SSH connection from DUT1 to IP address 10.215.168.20 with the user admin:

admin@DUT1$ ssh admin@10.215.168.20 option StrictHostKeyChecking=no option UserKnownHostsFile=/dev/null port 3100
Show output
Warning: Permanently added '[10.215.168.20]:3100' (ECDSA) to the list of known hosts.
admin@10.215.168.20's password:
Welcome to Teldat OSDx v4.2.8.1

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Last login: Thu Dec 11 18:13:42 2025 from 10.215.168.21
admin@osdx$