invoking telnet from two different interfaces

Question

I use telnet to test email server connectivity between servers.

My server has two interfaces, I'd like to telnet over each.

Basically I'd like to choose source (one of my local ip addresses) AND destination when using telnet.

Is this possible?

score 37 · Answer 1 · answered Jul 28 '11 at 14:29

37

My manpage tells me that telnet -b <sourceaddress> <destination> is the winning combination.

answered Jul 28 '11 at 14:29

womble

2

I wish I could do +2 for delightful use of manpage and slight sarcasm. – Alex Jul 28 '11 at 14:31
What os? I'm running rhel 4 and my man page doesn't have that option. 'telnet: invalid option -- b' – RussellBallestrini Jul 28 '11 at 14:34
"slight"? I must be losing my touch. – womble Jul 28 '11 at 14:34
4

@foxhop: Linux NetKit version 0.17, released August 15, 1999. I wonder if that's too new to have made it into RHEL 6...? – womble Jul 28 '11 at 14:36
Now that is not slight sarcasm...so you still got the touch. Just had to warm up a bit I guess. – Alex Jul 28 '11 at 14:39
`telnet -s []` on OSX – Bas van Ommen Nov 24 '17 at 10:40

score 3 · Answer 2 · answered Feb 08 '17 at 20:03

3

I feel a little stupid for posting this as an answer, but I'm new so I can't reply to @RussellBallestrini

But you can try telnet -s <src_addr> <destination>

I'm doing this on OSX, not Red Hat—just thought I throw this out there.

answered Feb 08 '17 at 20:03

rjgrazioli

2 Answers2