Re: campus routers and SMB

Thanks all.

I have a user who had been advised by his outgoing staff that he would
have trouble with Windows sharing between the two subnets that Michael
so amazingly conjured. I thought it made no sense.

It turns out that the Windows (XP) Firewall on one of the machines had
exceptions for NBT ports 135-139 and SMB port 445, for the _subnet_only_.
(Is this the default? It also had ICMP-echo open.) That explains the
problem spanning subnets.

All fixed.

-tc

-- 
Ted Crum
tedcrum@socrates.berkeley.edu
On Mon, 12 Jun 2006, Michael Sinatra wrote:
> But they don't block those ports within campus, except at the border
> between the reshalls and the rest of campus.
>
> In other words, the routing between two subnets on campus, say (oh, just
> thinking off the top of my head) the 128.32.243.0/24 and the
> 169.229.130.128/24 does not have any blocks on it. ;-)
>
> Both of these subnets are on the same blade of the same router, BTW.
>
> michael
>
> Kevin Burney wrote:
> > There is a block at the campus border which blocks the SMB networking ports
> > 137, 138, 139 & 445
> >
> > -Kevin
> >
> >
> > Kevin D. Burney
> > Computer Systems Architect
> > Computer Operations and Information Services
> > for the Office of the Vice Chancellor of Administration
> > University of California, Berkeley
> > (510) 827-8476
> > kburney@berkeley.edu
> >
> >
> > -----Original Message-----
> > From: owner-micronet-list@lists.berkeley.edu [mailto:owner-micronet-list@lists.berkeley.edu] On Behalf Of Ted Crum
> > Sent: Monday, June 12, 2006 2:49 PM
> > To: Micronet group micronet
> > Subject: [Micronet] campus routers and SMB
> >
> > Do the campus routers block any ports that would interfere with SMB networking (either over NBT or native) beween Windows machines
> > on different subnets?
> >
> > At the border?
> >
> >
> > Thanks,
> >
> > tc
> >
> >
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