From: Richard Adams (oxeunom@ndo.com)
Date: Sat Feb 03 2001 - 12:48:52 EET
On Fri, 02 Feb 2001, qxbyikt.axjauh@above.net wrote:
> Friends,
> I am not an expert but I do my best to learn. My only trouble is that I live in the
wrong country, the wrong island and the wrong town to get good technical help
on anything other than coconuts, rice, and fishing. So I apeal to you. > I
am attempting to implement a TCP/IP over AX.25 connection using 2 meter radio.
I have a number of KPC 9612's and am trying at the basics first by sticking
with 1200bps. I think I've got thins working for the most part. I can ping,
telnet, http, and etc., but there is one problem. With certain protocols
(pardon me if my description is lacking) such as telnet, ftp, and I believe
also http, there is often a delay in trafic. For example. I try to telnet to
my remote system. (The remote system is also running the DNS) I can watch the
modem send and recieive. It sends a DNS lookup request. It get's a response
and my computer shows and IP address for the remote system. Then several more
back and forth and I get the message telling me about escape sequence etc.
Then it just sits for some time. At long last it will start up sending and
receiving again and it will ask for my user name, but about the time I get the
user name entered it has timed out. Why? if I do a te! > lnet with the -a
option and have the password ready to past as with a click of the right mouse
button, I will be able to log in. What would do this? With ftp, I'm not sure
exactly what goes on. With http, it will stop halfway through a document and
not go on. What's happening? Also, I don't think sendmail is working properly
over it, but I do not know if that is the fault of the connection or the
configuration.
The reason the above text looks like it does is because you use a mailer which
does not line wrap. Please set your line lengh to around 75 chars.
1200 baud is simply "Too slow" to negociate a telnet session, you have seen
that you get a connect but the session times out before you can login.
The reason is that linux is setting up the session in charachter mode, the
negotiation invloves many packets, how many i dont know, then when the "login
prompt" appiers just about every keystoke is one packet.
The default timeout in the login program is 60 seconds.
You can try and get into "line mode" as soon as the session is connected, hit
the escape char which will give you the "telnet>" prompt, simply type in
"mode line" and hit enter, you must do that as soon as you are connected,
thats what i used to do when i started using linux and had only 1200 baud.
'man telnet' explanes more.
>
> Blessings on all who can help. It is much appreciated,
>
> Christopher George, KE4KUK/DU1
> 5305 Brooke's Point
> Palawan
> Philippines
>
-- Regards Richard sorrlqk.zuccsar@mailit.tunk.net http://people.zeelandnet.nl/pa3gcu/- To unsubscribe from this list: send the line "unsubscribe linux-hams" in the body of a message to cjhl.yrfjvnqymt@llbc.co.uk
This archive was generated by hypermail 2b30 : Sat Feb 03 2001 - 13:20:40 EET