[c-nsp] HDLC or PPP for layer 2 encapsulation?

Joseph Jackson JJackson at aninetworks.com
Thu Mar 2 14:27:20 EST 2006


 

> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net 
> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Larry Smith
> Sent: Thursday, March 02, 2006 11:01 AM
> To: cisco-nsp at puck.nether.net
> Subject: Re: [c-nsp] HDLC or PPP for layer 2 encapsulation?
> 
> On Thursday 02 March 2006 12:39, Robert Boyle wrote:
> > At 01:21 PM 3/2/2006, you wrote:
> > >Hmmm, I was under the impression that pretty much all Netbios  
> > >communication was done as broadcast packets (ports 137, 
> 138, 139, and 
> > >now  450 to the .255 network address) and that broadcast 
> packets are not
> > > transferred across routers.   A wins server takes care of 
> all this, but
> > > natively I do not believe that you will "see" the other 
> network in  
> > >standard Windows Network without a wins server or 
> something running  
> > >running that does this function???
> >
> > NETBEUI wouldn't work over a WAN unless traffic was encapsulated or 
> > bridged. NBT or Netbios over TCP/IP will work fine with Windows NT 
> > with a WINS server or Windows 2000/2003 with just active directory 
> > integrated DNS. WINS is not needed for Windows XP/2000/2003 
> networks.
> > We also use PPP for everything for the same reasons others have 
> > mentioned. We can put any router in place and never need to 
> > reconfigure the other side
> >
> 
> Yes, but you are essentially repeating what I said:
> 
> <quote>
> > > without a wins server or something running running that does this 
> > > function
> </quote>
> 
> but that still does not address the original statement:
> 
> <quote>
> As for the NetBIOS stuff as long as you have IP connectivity 
> between the too sites you won't have any issues With the 
> communication of them. 
> </quote>
> 
> which may be "correct" in a Microsoft world, but is not 
> technically correct.  
> IP connectivity does not quarantee NetBios (or any other 
> protocol) to work.
> 
> --
> Larry Smith
> SysAd ECSIS.NET
> sysad at ecsis.net

Well of course theres no guarantee that it will work.  Lifes a gamble
but theres nothing special you need to do on a router to get it to work.
If you are in a nt or 2000 domain and you have ip connectivity between
the sites you shouldn't have any issues. 



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