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Date:      Fri, 17 Apr 1998 13:29:16 -0400
From:      Gary Algier <gaa@dgms.com>
To:        freebsd-questions@FreeBSD.ORG
Cc:        dwhite@resnet.uoregon.edu, malte@webmore.com
Subject:   Re: Who's Broken: Sun or FreeBSD?
Message-ID:  <3537916C.673BFE68@dgms.com>
References:  <3.0.32.19980417113618.00752b2c@cyclone.degnet.baynet.de>

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owner-freebsd-questions@FreeBSD.ORG wrote:
> 
> At 12:54 16.04.98 -0400, Gary Algier wrote:
> >I have FreeBSD 2.2.6 running on my desktop machine here at work.  It is
> >on one of the two subnets and I am trying to nfs mount our file server
> >and it hangs forever.  (FreeBSD can't even reboot.  It hangs right after
> >syncing the disks.)  I ran tcpdump & tcpshow and found out that someone
> >is messed up: either Sun or FreeBSD.
> >
> >A few (faked to protect the guilty) details:
> >    Client:
> >       Hostname:       client
> >       OS:             FreeBSD 2.2.6
> >       IP1:            192.168.2.10 (client)
> >    Server:
> >       Hostame:        server
> >       IP1:            192.168.1.1 (server)
> >       IP2:            192.168.2.1 (xxx-server)
> >       Yes, the server is also configured to forward.  It is our "router".
> 
> Seems as you aliased one IP. Which one is the alias ?
Neither.  The Sun has two ethernet interfaces in it.  It is routing between
two subnets.  I am trying to mount via the interface "on the other side".
It is replying as if I requested the mount via "this side".

> >
> >If I mount with:
> >       mount xxx-server:/home /mnt
> >It works just fine.When I try to mount with:
> >       mount server:/home /mnt
> >It hangs forever.
> >
> >By looking at the packets I can see the following conversation:
> >       Source ip/port          Dest ip/port
> >       192.168.2.10/971        192.168.1.1/111         portmapper request
> >       192.168.2.1/111         192.168.2.10/971        portmapper reply
> >This goes on forever.
> 
> As you can see. 192.168.1.1 gets the request, 192.168.2.1 responds on the
> request. So again, Which one is the alias ?
So again, neither.

> Malte Lance
> malte@webmore.com
> 
> >
> >It looks like the sun is replying using the wrong interface ip address
> >and freebsd is ignoring it.
> >
> >Who is wrong?  (I think Sun) How do I get it fixed?  How do I get
> >freebsd to accept the bad data?  Hummingbird NFS on the NT PCs here
> >works just fine with bad responses.
> >
> >Using the "xxx-server" name is not a good option.  I am trying to use amd
> >and it can't differentiate when someone types "ls /h/server/home/me".
> >
[...]

BTW:  I ran tcpdump on the FreeBSD machine.

-- 
Gary Algier, WB2FWZ       gary.algier@dgms.com              +1 609 608 2758
DGM&S Telecom, 1025 Briggs Rd, Mt. Laurel, NJ 08054     Fax:+1 609 866 8850
        Paul Petzoldt on the renaming of Mount Washington:
"I Call it the New England Booby Trap.  We see Ph.D.'s from private schools
taking kids up there in shorts.  People die like flies up there!"

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