From: Church, Chuck (cchurch@netcogov.com)
Date: Thu May 05 2005 - 21:28:04 GMT-3
Netbios is a session-layer protocol (I think it's session). It can ride
over IPX, IP, or Netbeui. I think you're confusing netbios with
netbeui. Think of netbios like appletalk, which can ride over
localtalk, ethertalk, tokentalk, etc. Ip helper references to netbios
would of course only apply to netbios over TCP/IP.
Chuck Church
Lead Design Engineer
CCIE #8776, MCNE, MCSE
Netco Government Services - Design & Implementation Team
1210 N. Parker Rd.
Greenville, SC 29609
Home office: 864-335-9473
Cell: 703-819-3495
cchurch@netcogov.com
PGP key: http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x4371A48D
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
John Matus
Sent: Thursday, May 05, 2005 7:45 PM
To: bdennis@internetworkexpert.com; ccielab@groupstudy.com
Subject: RE: ip helper-address command
hmmm......how and why would a router forward udp ports for netbios if
netbios is a non-routable protocol??
>From: "Brian Dennis" <bdennis@internetworkexpert.com>
>To: "John Matus" <john_matus@hotmail.com>,<ccielab@groupstudy.com>
>Subject: RE: ip helper-address command
>Date: Thu, 5 May 2005 19:38:28 -0400
>
>Key is to just know what you are trying to forward. The router will
>forward these UDP ports by default:
>
>37 Time Protocol
>49 TACACS
>53 DNS
>68 BootP Server
>69 TFTP
>137 NetBios
>138 NetBios Datagram
>
>If you want to forward any other UDP ports, you should specify them
with
>the "ip forward-protocol udp <port number>" command. If you do not
want
>the router to forward any of the default ports, use the "no ip
>forward-protocol udp <port number>" command.
>
>Brian Dennis, CCIE #2210 (R&S/ISP-Dial/Security)
>
>bdennis@internetworkexpert.com
>Internetwork Expert, Inc.
>http://www.InternetworkExpert.com
>Toll Free: 877-224-8987
>Direct: 775-745-6404 (Outside the US and Canada)
>
>-----Original Message-----
>From: John Matus [mailto:john_matus@hotmail.com]
>Sent: Thursday, May 05, 2005 4:15 PM
>To: Brian Dennis; ccielab@groupstudy.com
>Subject: RE: ip helper-address command
>
>yes, that is an ugly document indeed. so it looks like the answer is
>"no"
>unless you're running lots of routers that are processing multiple
>duplicate
>broadcast request.
>
> >From: "Brian Dennis" <bdennis@internetworkexpert.com>
> >To: "John Matus" <john_matus@hotmail.com>,<ccielab@groupstudy.com>
> >Subject: RE: ip helper-address command
> >Date: Thu, 5 May 2005 18:50:44 -0400
> >
> >Everything you ever wanted to know about the "ip helper-address" and
>"ip
> >forward-protocol udp" commands but were afraid to ask:
> >
> >http://www.cisco.com/univercd/cc/td/doc/cisintwk/idg4/nd2019.htm
> >
> >Direct from the DocCD ;-)
> >
> >Brian Dennis, CCIE #2210 (R&S/ISP-Dial/Security)
> >
> >bdennis@internetworkexpert.com
> >Internetwork Expert, Inc.
> >http://www.InternetworkExpert.com
> >Toll Free: 877-224-8987
> >Direct: 775-745-6404 (Outside the US and Canada)
> >
> >-----Original Message-----
> >From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
Of
> >John Matus
> >Sent: Thursday, May 05, 2005 2:54 PM
> >To: ccielab@groupstudy.com
> >Subject: ip helper-address command
> >
> >does the "ip helper-address" command need the "ip forward-protocol
udp"
> >command in order to work correctly?
> >
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