Re: Sun-4/110 NetBSD Diskless NFS Issue

[Samuel Furtaw <samfurtaw%gmail.com@localhost>]

Thank you Palle! Yes, the redirects were causing the NFS issue. I have
split onto a different subnet.

However, now the 'crazy interrupts' panic is back, and it's right
after sparcvme0 loads up - I have dropped my config for this kernel in
a gist here: https://gist.github.com/sfurtaw/28a600a282d0af955dc7275e2648c4e6

Samuel

On Wed, Apr 10, 2024 at 6:53 AM Samuel Furtaw <samfurtaw%gmail.com@localhost> wrote:
>
> The network boot ROM on the Sun-4 doesn't understand classless
> networks and my 10.100 subnet is a /16 network - I added the 172.16/16
> as part of the same VLAN & firewall zone, so they are essentially the
> same subnet.
>
> The ICMP redirect - I'm not sure. OpenWrt must have this as a default
> behavior. The ICMP redirect does show up directly before
> communications break down though, which I hadn't considered. I'm going
> to run some tests with a different network setup.
>
> Thanks.
> Samuel
>
> On Mon, Apr 8, 2024 at 2:33 PM Palle Lyckegaard <palle%lyckegaard.dk@localhost> wrote:
> >
> > On Mon, 8 Apr 2024, Samuel Furtaw wrote:
> >
> > > Here is the PCAP file on Google Drive - the NFS conversation in
> > > question is between 172.16.0.2 (server) and 10.100.0.4 (sun4). The
> > > sun4 jumps between two different IPs in the PCAP since its RARP and
> > > BOOTP addresses are different.
> > > https://drive.google.com/file/d/1iy0JUlSL3GMwMBKWHRiCf8r49xWEdxRK/view?usp=drive_link
> > >
> >
> > Record #298 has a ICMP Rediret packet (and more follows in #303 and #306).
> > Why does 10.100.0.1 (your local gw?) send this redirect message to your NetBSD client?
> >
> > Any reason for using two seperate IP subnets in your setup (172.16.0.0/24
> > and 10.100.0.0/24)?
> > Why not let RARP assign the same IP adress as the DHCP does later on?
> >
> >