Re: dhcpcd not working in simh-vax with xq0:nat networking

[John Klos <john%ziaspace.com@localhost>]

> From the output, it seems like dhcpcd doesn't receive the dhcp replies.
> But it does see them when tcpdump puts the interface in promiscuous mode.
> (Why it works with the other networking style remains unexplained.)
>
> Any ideas?

My experience with recent NetBSD/vax on simh is that network has to be 
"activated" on the virtual VAX before it'll work. This usually happens 
from ntpdate running at boot, since my virtual VAX has static addresses, 
but in order for it to stay active, I usually run a ping to the gateway 
every few minutes.

The simh console emits these every now and then:

Sockets: _eth_reader(tap):  error 35 - Operation would block

The requirement that activity has to start with the VM is true of all 
traffic - other machines on the same LAN can't see the VM until the VM 
initiates traffic, and the same is true for IPv6 traffic, even if a 
machine can actively talk to the VM because of previous IPv4 traffic.

Maybe putting the interface in to promiscuous mode "activates" it.

Unfortunately, I haven't had time to really see what's up.

Thanks,
John