[Samba] Subnet not visible in Network Neighbourhood

[Edmundo Valle Neto]

Alessandro FAGLIA escreveu:
> Hi list!
>
> I've got a debian "etch" box running samba 3.0.24.
> The server is a firewall (running Shorewall 3.2.6) with five NICs:
> eth0 -> DSL (it has a public IP address and it allows all the people 
> browse by masquerading other interfaces)
> eth1 and eth3 -> bond0 (IP address is 192.168.1.1/24)
> eth2 and eth4 -> bond1 (IP address is 192.168.2.1/24)
> BTW, bond+ refers to an interface which enslaves two physical NICs.
>
> Samba is acting as WINS server, and I don't have other Windows Servers 
> which acts as PDCs or WINS servers.
> There is no PDC in the network.
>
> The smb.conf is the following (only [global] section is reported):
>> [global]
>>         workgroup = WORK
>>         server string = server Etch
>>         interfaces = 192.168.1.0/24, 192.168.2.0/24, 10.1.0.0/24, 
>> 127.0.0.1/8
>>         bind interfaces only = Yes
>>         obey pam restrictions = Yes
>>         passdb backend = tdbsam
>>         passwd program = /usr/bin/passwd %u
>>         passwd chat = *Enter\snew\sUNIX\spassword:* %n\n 
>> *Retype\snew\sUNIX\spassword:* %n\n *password\supdated\ssuccessfully* .
>>         syslog = 0
>>         log file = /var/log/samba/log.%m
>>         max log size = 1000
>>         dns proxy = No
>>         wins support = Yes
>>         ldap ssl = no
>>         panic action = /usr/share/samba/panic-action %d
>>         invalid users = root
>>         hosts allow = 192.168.1., 192.168.2., 10.1., 127.
> 10.1.0.0/24 is a subnet for OpenVPN roadwarriors.
>
> The problem is that from my laptop (belonging to 192.168.1.0/24 
> subnet), running Windows XP Pro SP2, in the Network Neighbourhood I 
> can only see machines belonging to my subnet. Machine of the other 
> subnet are not listed, even if I can reach them (e.g. \\machine shows 
> me shares and printers). The same for machines belonging to the second 
> subnet, with the difference that they can only see machines in their 
> subnet.
> I checked the firewall, and apparently there are no rules which block 
> broadcast traffic between the two subnets.
>
> Any hint is GREATLY appreciated.
>
> TIA
> --Alessandro

Read this (it explains how cross-subnet browsing works):
http://us1.samba.org/samba/docs/man/Samba-HOWTO-Collection/NetworkBrowsing.html#id349811

In fact I recommend you to read the entire chapter about network 
browsing (it explains the roles of LMBs, DMBs, WINS, etc, and how they 
work).


Regards.

Edmundo Valle Neto