[Samba] Cross-subnet browsing

Con Harte sysadmin at gfm.co.uk
Wed May 29 06:22:52 GMT 2002

Thanks Simon,

I had wondered if the ip helper address I put in for
DHCP (running on the samba server) was causing this.

I wasn't getting very far in proving/disproving it though.
(Lot's of reading tcpdump's manpage!)

I'll put these changes in place right away.
Thanks for your help.

Con Harte.

At 13:21 29/05/02, you wrote:
>Con Harte wrote:
> >The LMB for one of our routed networks doesn't seem to
> >be collecting the browse list from our DMB (also PDC).
> >
> >Also we seem to be getting entries in nmbd's log to say
> >that the LMBs of these remote nets are claiming that they
> >are LMB of the local net.  They _are_ LMBs but of _their_
> >Local net.  So why is nmbd then having elections on the local
> >net.
>One I can answer ! You have broadcast forwarding turned on in the
>router(s). The LMB is broadcasting it's existence, and that broadcast is
>getting forwarded to other subnet(s). However, when the election is held it
>gets sorted out (until the next broadcast).
>If you are using Cisco routers, then you want to include some (or all) of
>these lines in your config :
>interface Ethernet0
>  ip address xxxx
>  ip helper-address xxx.xxx.xxx.xxx
>! turns on broadcast forwarding (in our case for bootp/dhcp support)
>no ip forward-protocol udp tftp
>no ip forward-protocol udp nameserver
>no ip forward-protocol udp domain
>no ip forward-protocol udp time
>no ip forward-protocol udp netbios-ns
>no ip forward-protocol udp netbios-dgm
>no ip forward-protocol udp tacacs
>! turn off those we DON'T want.
>Simon Hobson, Technical Services Engineer
>Colony Gift Corporation Limited
>Lindal in Furness, Ulverston, Cumbria, LA12 0LD
>Tel 01229 461100, Fax 01229 461101
>Registered in England No. 1499611
>Regd. Office : 100 New Bridge Street, London, EC4V 6JA.

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