Date: Tue, 25 Apr 2000 20:32:48 +0100 From: Brian Somers <brian@Awfulhak.org> To: Alexander Frolkin <alexander@frolkin.demon.co.uk> Cc: Brian Somers <brian@Awfulhak.org>, stable@freebsd.org, brian@hak.lan.Awfulhak.org Subject: Re: portmap strangeness Message-ID: <200004251932.UAA31667@hak.lan.Awfulhak.org> In-Reply-To: Message from Alexander Frolkin <alexander@frolkin.demon.co.uk> of "Tue, 25 Apr 2000 18:47:35 BST." <20000425184734.A940@gamma>
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> On Sun, Apr 23, 2000 at 10:10:22PM +0100, Brian Somers wrote:
> > > On Sat, Apr 22, 2000 at 10:06:21AM +0100, Brian Somers wrote:
> > > > In /usr/src/usr.sbin/portmap, can you
> > > >
> > > > cc -o from_local -DTEST from_local.c
> > > > ./from_local
> > > >
> > > > and see how this compares to the output of ifconfig -a ? If this
> > > > finds all the interface addresses after lp0, then there *should* be
> > > > no problems.
> > >
> > > I've done that, and I get the addresses of all the interfaces which are 'up'
> > > listed correctly, however portmap only works when lp0 is also up. (This is
> > > the first interface in ifconfig -a, if that makes a difference). from_local
> > > shows the address of lp0, when it is up, as 0.0.0.0, which is correct since
> > > the address isn't set because I'm not using the interface at the moment.
> >
> > Well, I think the next step(s) are to ensure that portmap is
> > LISTENing to *.111 and then to use tcpdump to see what address the
> > nfs stuff is coming from - without lp0 being IFF_UP.
>
> With lp0 down, netstat shows that portmap is listening on *.111, but there
> is no RPC traffic in tcpdump -ilo0 when I run mountd and nfsd.
>
> With lp0 up, netstat shows the same, but there is some sunrpc traffic on
> lo0, when the services register.
>
>
> Also, I've noticed that if the system boots with lp0 down I can bring lp0 up
> and then down again, and the services will register (this is without
> restarting portmap).
So it looks like a problem with the rpc library ? Have you got ``::1
localhost'' in /etc/hosts ? If so, try removing it to see if the
problem is that portmap isn't ip6 aware.
> Thanks,
>
> Alexander
>
> > It sounds like portmap is failing to identify the address as being
> > local....
> >
> > > Thanks,
> > >
> > > Alexander.
> >
> > Cheers.
--
Brian <brian@Awfulhak.org> <brian@[uk.]FreeBSD.org>
<http://www.Awfulhak.org>; <brian@[uk.]OpenBSD.org>
Don't _EVER_ lose your sense of humour !
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