Directed broadcastes are less of a burden as far as passing brodcasts for
specific apps.
indeed netbios is not routeble, to route it u use NBT or NBIPX

""Priscilla Oppenheimer""  a icrit dans le message de
news: [EMAIL PROTECTED]
> koh jef wrote:
> >
> > hi guys,
> >
> > can netbios,using port 137, 138 and 139 be routed thru WAN ???
>
> NetBIOS uses UDP and TCP which run on top of IP, which is routable over an
> IP internetwork, including WAN links.
>
> Routers don't forward broadcasts though, by default. When NetBIOS runs
over
> UDP ports 137 and 138, a lot of it is broadcasts. You can use an IP helper
> address and udp forwarding on a router to get the router to forward those.
> That might not be such a good idea, though. It could make resources
> available across the WAN that you don't want to make available. It could
> require you to open ports on firewalls, resulting in security risks.
>
> You need take a higher-level view of what you're trying to do... Windows
> networking across an internetwork can be challenging...
>
> Priscilla




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