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very slooooooooow prompt via Telnet

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Didier Morandi_2
Frequent Advisor

very slooooooooow prompt via Telnet

I have a PC with address 192.168.0.1/255.255.255.0 and an Alpha with address 192.168.0.2/255.255.255.0 on a DSL modem/router.

I have TCP/IP 5.3-10 on the Alpha and XP-SP2 on the PC.

When I Telnet from the PC to the Alpha (with KEA-VT that I use for that purpose since ages, but without a router) I experiment a 30 seconds delay before I get my USERNAME prompt. After that, all is fine.

Why?

Thanks,

D.

(for a come back, that is a come back. Good questions... :-)
I want to become the European VMS VP :-)
9 REPLIES
Didier Morandi_2
Frequent Advisor

Re: very slooooooooow prompt via Telnet

cont'd

My satellite is now up and running. I configured TCP/IP on DTL02, then TELNETed to DTL01 and I get my prompt at once...

D.
I want to become the European VMS VP :-)
Jan van den Ende
Honored Contributor
Solution

Re: very slooooooooow prompt via Telnet

Didier,

It looks like you need to get a timeout, and then a second chance that succeeds.

Are you connecting by name or by IP address?

If by name, you should look into DNS first.

Without further info, my guess is that you have 2 DNS servers, the first of which can not find the address, and after timeout the second can.

hth.

Proost.

Have one on me.

jpe
Don't rust yours pelled jacker to fine doll missed aches.
Antoniov.
Honored Contributor

Re: very slooooooooow prompt via Telnet

Didier,
what do you mean "I configurated TCP/IP" ?

Antonio Vigliotti
Antonio Maria Vigliotti
Veli Körkkö
Trusted Contributor

Re: very slooooooooow prompt via Telnet

How about

ALPHA$ ucx set host pc/address=192.168.0.1

and try the telnet from PC again. Because the ALPHA now knows a name for your client at 192.168.0.1, it does not need to do DNS lookup.

And the DNS lookup anyway fails so that is the reason for timeout.

_veli
Willem Grooters
Honored Contributor

Re: very slooooooooow prompt via Telnet

telnet to SL01 - from PC or from DSL02?

Willem Grooters
OpenVMS Developer & System Manager
Didier Morandi_2
Frequent Advisor

Re: very slooooooooow prompt via Telnet

re: Jan
By IP address

re: Antonio
I set up TCP/IP on the Alpha to be able to receive incoming Telnet connections

re: Veli
BINGO: that was it. Have one for me :-)

re: Willem
from the PC. From the other Alpha it was ok.

Thanks for all.
You are wonderful.

D.

ps: who is that Veli guy I never heard about??? :-)
I want to become the European VMS VP :-)
Ian Miller.
Honored Contributor

Re: very slooooooooow prompt via Telnet

you can disable the lookup of the IP address of incoming connections by
TCPIP SET SERVICE TELNET/LOG_OPT=NOADDR
TCPIP DISABLE SERVICE TELNET
TCPIP ENABLE SERVICE TELNET
Note this will disconnect all telnet sessions.
____________________
Purely Personal Opinion
Jan van den Ende
Honored Contributor

Re: very slooooooooow prompt via Telnet

Didier,

just click on his name, and get all info his himself has supplied.

Proost.

Have one on me.

jpe
Don't rust yours pelled jacker to fine doll missed aches.
Didier Morandi_2
Frequent Advisor

Re: very slooooooooow prompt via Telnet

Thanks to all.
See you.

D.
I want to become the European VMS VP :-)