[Samba] can connect to 2 samba servers by name but to one by IP only

Daniel Müller mueller at tropenklinik.de
Thu Jan 6 06:51:39 MST 2011

opensource: openvpn can do broadcast!!!

On Thu, 6 Jan 2011 07:17:07 -0500, "Gaiseric Vandal"
<gaiseric.vandal at gmail.com> wrote:
> Even though it is a fully virtual NIC I think the firewall (Sonicwall)
> still blocks Netbios broadcasts.    So as far as I can tell, using DNS
> the only way a VPN client could resolve a windows machine name.
> When I connect to the vpn, I can immediately use "net use \\someserver"
> pretty much all the servers.  I would expect that if I am using a
> functionality to locate windows resources, I might have to wait a few
> minutes until this worked.
> I will see if I can tdbdump the browser database files on the PDC (which
> should be the master browser.)     I have other machines on the network
> that are DC's in their own domains, that may also try to be the master
> browsers.  But they all point to the same WINS server (one of the samba
> BDC's) so I think this should not be an issue.    Generally I find that
> use of WINS (and also making sure that the servers are listed in DNS)
> most issues go away.
> -----Original Message-----
> From: Bob Miller [mailto:bob at computerisms.ca] 
> Sent: Thursday, January 06, 2011 12:07 AM
> To: gaiseric.vandal at gmail.com
> Cc: samba at lists.samba.org
> Subject: Re: [Samba] can connect to 2 samba servers by name but to one
> IP only

>> The XP
>> VPN Clients are not using hosts or lmhosts files.  Wins is not used
>> the
>> VPN.        All the samba and windows machines on the network are
>> configured
>> to use WINS so I don't think they would respond to netbios broadcast
>> requests looking for a machine by name.     
> Does it not work that when a windows machine has no wins server that it
> can use the master browser to resolve netbios names?  If such is the
> case, then perhaps the pdc is not being listed by the master browser
> that the vpn clients are consulting?
> I am not familiar with the type of VPN you are working with, but I know
> broadcast is a problem for the ones I have worked with.  If you have a
> full virtual nic on the LAN, then this probably isn't a problem for you,
> but in my experience, a vpn client cannot send a broadcast packet to a
> remote LAN.  This has caused me some serious grey hairs over my time
> playing with vpns and windows networking, seems a lot of things depend
> on it.
> just some thoughts...
> Bob Miller
> 334-7117/660-5315
> http://computerisms.ca
> bob at computerisms.ca
> Network, Internet, Server,
> and Open Source Solutions

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