How to telnet tcp not udp

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Level 2

279 points

How to telnet tcp not udp

I have been given a set of IP addresses and ports to test our connection to another comupter. In terminal I enter the ip address followed by a space and then port:

Some of the ports are UDP and some are TCP/IP, but the client on the other end says we're only connecting via UDP. Is there a way to tell terminal to use TCP/IP instead of UDP?

G5 PPC 1.8 Ghz 2 Ghz RAM, Mac OS X (10.5.8), 17" 2.16 Ghz MBP 1 GB RAM (10.6 Snow Leopard)

Posted on Mar 1, 2011 2:21 PM

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Answer 1

Beavis2084

Level 4

2,854 points

Mar 2, 2011 6:48 AM in response to TGH

Read up on Telnet and TCP/IP:

http://en.wikipedia.org/wiki/Telnet

http://linux.about.com/od/commands/l/blcmdl1_telnet.htm

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Answer 2

TGH Author

Level 2

279 points

Mar 2, 2011 9:51 AM in response to TGH

Hey Beavis.

Thanks for the response. I did see those tutorials online, but they didn't really address the issue I was having - my issue is that a client is telling me I should be connecting TCP, but he says I am connecting UDP.

I don't see any way to change the protocol either with a switch or modifier in the terminal command.

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Answer 3

Beavis2084

Level 4

2,854 points

Mar 2, 2011 11:30 AM in response to TGH

WHO is telling you that you are connecting over UDP?

http://www.cisco.com/en/US/docs/ios/12_1/termserv/configuration/guide/dcdrtlnt.h tml#wp1000970

Basically, you cannot use Telnet on UDP. It's setup for TCP. UDPTN might be what you are talking about(?)

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