Two questions about telnet option about telnet

[ziutek]

I added checking to avoid optEcho loop. Try the modified code and report does it help.

[vinllen]

It doesn't work. Is it the problem that different switch uses different telnet protocol version?

[vinllen]

Does no response mean accept in telnet protocol?

[vinllen]

When I set the echo option to false in the (func (c *Conn) SetEcho(echo bool)), the optEcho loop still exists. However, this loop disappears when setting the option to true. This phenomenon is very strange. Setting echo option true receive:

received cmd: 251 1
received cmd: 251 1
received cmd: 251 1
received cmd: 251 3
received cmd: 253 24
received cmd: 253 31
received cmd: 254 24

[vinllen]

About the first problem, it looks like some switches need character \r after \n