[Info-vax] TCPIP on VMS8.3/8.4

[Stephen Hoffman]

On 2020-08-24 17:07:44 +0000, Chris Townley said:

> I am running an instance of HP OpenVMS 8.3 and one of VSI 8.4-2L1 on FreeAXP.
> 
> After changing my DSL router, I let them connect before binding their 
> MAC address to fixed IP addresses.
> 
> However on reboot they both reverted to the previous IP address. I left 
> thyem down for a time in excess of their lease, but they resolutely 
> refuse to use the new addresses.
> 
> I have rebooted a few times, and also tries releasing and dropping the 
> leases with dhcpconf to no effect.
> 
> Any ideas?

Use static IP.

The TCP/IP Services DHCP client support is not something I've ever had 
success with, and not something I've ever generally recommended using.

Again, use static IP addresses. Add a parallel reservation for those IP 
addresses in the DHCP server pool (with MAC address(es) as needed), or 
configure and use IP addresses outside the DHCP server IP address pool.

TCP/IP Services networking and related features and security are 
getting overhauled, though we may have a bit longer before that's 
available on VSI OpenVMS Alpha.

The VSI IP stack will hopefully have better support for DHCP client. 
Parts of the TCP/IP Services stack and the not-really-integrated 
network security support was and is... weak.

And DECnet swapping controller MAC addresses doesn't help things.

(AT&T Uverse configurations reportedly get "interesting" for devices 
that don't support DHCP client, though.)


-- 
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