Telnet Problem

[john.medalla]

Hi All,

Good Day!

I have problem regarding telnet the port through client going to server and server to client.

I already set the port in our firewall but only 2 ports are can telnet the port 80 and port 443 but for port 12345 this the error occur "http/1.0 400 bad request. In server to client all  ports cannot telnet. What do you think the cause why it cannot telnet?

I hope your positive response.

Thank you.

Regard,

John

[Mark Malone]

if you telnet like this telnet 10.1.1.1 80 your not actually using telnet its testing http access and again 443 is testing https access , telnet uses port 23 but you dont need to specify it , if you telnet to 12345 that port needs to map to something that's actually known , the device probably does not know what port 12345 is used for so cannot action it