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Re: Two tuxes, an xp and a DNS problem



On 10/30/05, marc <gmane@auxbuss.com> wrote:
> John Purser said...
> > On 10/29/05, marc <gmane@auxbuss.com> wrote:
> > > I have three machines in a small network: one XP, two Linux - let's call
> > > them xp, tux1 and tux2. xp connects to the Internet via a dial-up modem.
> > > Internet Connection Sharing (ICS) is enable and works fine. ICS forces
> > > xp's IP to be 192.168.0.1, so the hosts file of tux1 and tux2 contains a
> > > line to that effect. ICS also provides DHCP services, which is how tux1
> > > and tux2 assign their IPs.
> > >
> > > xp can ping tux 1 and tux 2 (and see other IP services)
> > > tux1 and tux2 can ping xp, use its IP services, and connect to the Net
> > > through it.
> > >
> > > But tux 1 and tux 2 can't find each other.
> > >
> > > However, tux1 and tux2 both run Samba servers and "see" each other
> > > without problems - via their Windows workgroup.
> > >
> > > /etc/resolv.conf on both tuxes contains:
> > > search mshome.net
> > > nameserver 192.168.0.1
> > >
> > > How can I make tux1 and tux 2 talk to each other without resorting to
> > > fixed IPs?
> > >
> > > --
> > > Best,
> > > Marc
> > >
> > >
> > > --
> > > To UNSUBSCRIBE, email to debian-user-REQUEST@lists.debian.org
> > > with a subject of "unsubscribe". Trouble? Contact listmaster@lists.debian.org
> > >
> >
> > I believe the problem is with the XP box and believe it or not it's
> > doing the right thing.
> >
> > Only certain ports are open by default in Windows under ICS.  The UDP
> > port that ping uses might not be one of them.  Open up your XP network
> > connection and take a look.  Go to connection properties (right click
> > on the interface), select the "advanced" tab.  There will be two
> > buttons on that form marked "Settings"  The top one is for the windows
> > firewall and the bottom is for ICS.  Take a look and see if the ping
> > UDP port is enabled.
>
> I temporarily enabled everything - and rebooted, as you do with Windows
> ;-) - but still no communication between the two tuxes. It's not just
> ping, of course, they can't resolve each other for http and so forth.
> The only thing that does work is Samba, but that might be something to
> do with the Windows workgroup thing <shrug> Forcing the issue with their
> allocated IPs also works, so they can "see" each other, but just won't
> talk.
>
> Funnily enough, I had the ping problem when I installed the Outpost
> firewall - which shuts off that port also - so I know where you are
> coming from.
>
> --
> Best,
> Marc
>
>
> --
> To UNSUBSCRIBE, email to debian-user-REQUEST@lists.debian.org
> with a subject of "unsubscribe". Trouble? Contact listmaster@lists.debian.org
>
>
DOH!  And of course ping uses ICMP, not UDP.

Sorry I didn't help Marc.  I'm about to convert a desktop to Linux,
after which I can model your setup.  I'll let you know if I find
anything that is meaningful.

John Purser



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