topic Re: WIN_TCP in Operating System - OpenVMS

WIN_TCP

John Welsh_2 — Tue, 14 May 2013 23:41:08 GMT

Hi all,

I need to change the IP address etc on a system running VMS5.5-2 and WIN_TCP

from Wollongong.

Can anyone help me with this ?

I have searched the web for WIN_TCP manuals and have had no luck.

Thanks,

JohnW.

Re: WIN_TCP

John Gillings — Wed, 15 May 2013 03:06:39 GMT

John,

Wow, a VAX? What fun!

Generally speaking, there's usually no way to "change" an IP address. It's better to think of it as a new installation. So, shutdown all your IP services and the IP stack itself and then (re)configure from scratch using the new address.

I'm not sure why you say "running system". Does that mean you or the customer expects to be able to do this with no interruption? Purely local processes may be OK, but anything that uses the network must, by definition, be interrupted.

Oh, something which MIGHT be possible. Perhaps you can define the new address as a secondary? That may achieve the same objectives, possibly with less disruption.

Re: WIN_TCP

Steven Schweda — Wed, 15 May 2013 04:10:43 GMT

Re: WIN_TCP

John Welsh_2 — Wed, 15 May 2013 04:15:23 GMT

Thanks John. I didn't expect to reconfigure tcpip without shuting down the system.

Yes I still work with VAX VMS.

It looks like I will have to go through a few iterations of installing WIN_TCP on my test

box to get familiar with it before reconfiguring the live system.

Thanks for your help. Regards, John W.

Re: WIN_TCP

John Welsh_2 — Wed, 15 May 2013 04:43:19 GMT

Thanks Steven,

I have done some digging based on your advice and have succeeded in changing the

IP address and am now able to ping and telnet into the system.

The version running is WIN_TCP052.

As suggested I edited [WIN_TCP052.NETDIST.MISC]STARTINET.COM and found the current IP

address which was associated with interface "ep0". This is VAX device "eza0". Changed the address

and also the Nameserver address in the same file and bounced the system.

It then came up and worked with the new address.

Thanks for your help.

Re: WIN_TCP

Steven Schweda — Wed, 15 May 2013 05:13:33 GMT

Re: WIN_TCP

John Welsh_2 — Wed, 15 May 2013 05:27:19 GMT

Hi Steven, yes its fairly old. The system disk still is labeled VAXVMS53 so it must have

been at least upgraded from that version. And I found some files where the history comments

were dated 1988 !

If I run WINTCP_VERSION.exe I get "WINTCP V5.2F-000 ( STANDARD kernel )

Regards, JohnW.

Re: WIN_TCP

Steven Schweda — Wed, 15 May 2013 13:35:08 GMT

Re: WIN_TCP

John Welsh_2 — Wed, 15 May 2013 23:26:08 GMT

Thanks Steven and John. I appreciate you taking the trouble to reply.

On to the next challenge !

JohnW.

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