PFA of the issue to understand better ..
When we connect to the Ethernet switch of the Router , it is accesble over telnet 4655.(See scenario 1)
When we move the Radio to the WAN port of the Router , it is not accessible over telnet 4655 (See scenario 2)
1. No ACL policies on Router
2. No restrictions configured in Cisco Router
3. from LAN , we are able to get PINg reply to Radio in scenario:2 conditions.
6. Radio is defined telnet access with 4655
By default telnet port is 23. Can we customise Telnet port number to 4655 on Cisco Router to access Radio with telnet 4655.