Priscilla,
I think that you are right about the ip dhcp-server command. I looked it
up on Cisco's web site. It seems
that it can be used only with dial up to tell the client where dhcp server
is.
Priscilla Oppenheimer wrote:
> Yes, I finally found that also, but only in reference to dial-up networks
> where the router is acting as an access sever for SLIP/PPP clients. Does it
> work elsewhere? It would be good if it did.
>
> Priscilla
>
> At 02:24 PM 9/26/01, [EMAIL PROTECTED] wrote:
>
> >Their must be more than one way to foreword DHCP requests.
> >
>
>http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121cgcr/dial_r/drdreip.htm#xtocid1564817>
> >
> >
> >Tom got me looking into this earlier.
> >
> >-Eric
> >
> >-----Original Message-----
> >From: Priscilla Oppenheimer
> >[mailto:[EMAIL PROTECTED]]
> >Sent: Wednesday, September 26, 2001 2:05 PM
> >To: [EMAIL PROTECTED]
> >Subject: Re: DHCP [7:21051]
> >
> >At 01:06 PM 9/26/01, khramov wrote:
> > > From my understanding ip dhcp-server command will enable upd broadcast
> > > on ports 66 and 67. Is that true?
> >
> >It causes your router to BE a DHCP server and to accept and process
> >broadcasts to UDP port 67 and to send responses from port 66. It does not
> >cause the router to forward UDP broadcasts to port 67.
> >
> >If you turn your router into a DHCP server, you would also have to
identify
> >an external File Transport Protocol (FTP), Trivial File Transfer Protocol
> >(TFTP), or remote copy protocol (rcp) server that you will use to store
the
> >DHCP bindings database. The router will access that database. Here's more
> >info on turning your router into a DHCP server, which is often not a good
> >idea, in my opinion (because it detracts from the router's real jobs):
> >
>
>http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fipr_c/ipcprt1/1cfdhcp.htm
> >
> >
> >Priscilla
> >
> > >Alex
> > >
> > >
> > >Priscilla Oppenheimer wrote:
> > >>Why do you want to turn your router into a DHCP server? I thought you
> > >>already had a DHCP server. You just need a helper address and
> > >>
> > >>ip forward-protocol udp 67
> > >>no ip forward-protocol 137
> > >>no ip forward-protocol 138
> > >>
> > >>The last two commands are because you said that NetBIOS broadcast
> > >>forwarding was causing problems for your NT server. When you have a
> helper
> > >>address, the router forwards a bunch of UDP packets. You have to
> configure
> > >>it to be more discerning.
> > >>
> > >>Priscilla
> > >>
> > >>At 09:24 AM 9/26/01, khramov wrote:
> > >> >Hello,
> > >> > ip dhcp-server works, I didn't specify it with a hyphen. So
> > >> would you
> > >> >agree
> > >> > that the best solution for me would be to disable ip directed
> > >> >broadcast, ip
> > >> > helper address and enable ip dhcp-server at the global config?
> If
> >I
> > >> >enable ip
> > >> > dhcp-server do I need to enable ip forward-protocol udp (ports
> > >> 66 and
> > >> >67)?
> > >> >
> > >> > Thanks a lot,
> > >> > Alex
> > >> >
> > >> >MADMAN wrote:
> > >> >
> > >> > > Hmm.. I haven't done it in a while so I tried it on a 7507 with
> > >> RSP8's and
> > >> > > an MSFC2,
> > >> > > they both accepted the command just fine but are not in the
> > >> config. So I
> > >> > > figured they
> > >> > > must be enabled by default so I did a no ip forward protocol udp
67
> >and
> > >> > > wallah, there it
> > >> > > is!!!
> > >> > >
> > >> > > C7507MIX#conf t
> > >> > > Enter configuration commands, one per line. End with CNTL/Z.
> > >> > > C7507MIX(config)#no ip for
> > >> > > C7507MIX(config)#no ip forward-protocol udp 67
> > >> > > C7507MIX(config)#^Z
> > >> > > C7507MIX#wr t
> > >> > > Building configuration...ip kerberos source-interface any
> > >> > > ip classless
> > >> > > no ip forward-protocol udp bootps
> > >> > >
> > >> > > Dave
> > >> > >
> > >> > > khramov wrote:
> > >> > >
> > >> > > > I did that, but when I do sh run it is not showing up in config
> > >> file. I
> > >> > > > mean (ip
> > >> > > > forward-protocol udp 67).
> > >> > > > Is that the way it is suppose to be?
> > >> > > >
> > >> > > > MADMAN wrote:
> > >> > > >
> > >> > > > > Check "ip foward protocol"
> > >> > > > >
> > >> > > > > Dave
> > >> > > > >
> > >> > > > > khramov wrote:
> > >> > > > > >
> > >> > > > > > Hello
> > >> > > > > > How do I enable broadcast for DHCP server? I know that
> ip
> > >> > > > > > helper enables UDP broadcast, but broadcast of netbios
> > >> > > > > > services causes some problems for win nt server. So I
> >guess
> > >> > > > > > to be more specific what can I do to forward udp
> > >> broadcast on
> > >> > > > > > ports 67 and 68 only?
> > >> > > > > >
> > >> > > > > > And another question that I have what exactly ip
> > >> > > > > > directed-broadcast command does? I've searched Cisco's
> > web
> > >> > > > > > site but I never came across a clear defenition?
> > >> > > > > >
> > >> > > > > > Thanks,
> > >> > > > > > Alex
> > >> > > > > >
> > >> > > > > > [GroupStudy.com removed an attachment of type text/x-vcard
> > >> which had
> > >> >a
> > >> > > > name
> > >> > > > > > of khramov.vcf]
> > >> > > > > --
> > >> > > > > David Madland
> > >> > > > > Sr. Network Engineer
> > >> > > > > CCIE# 2016
> > >> > > > > Qwest Communications Int. Inc.
> > >> > > > > [EMAIL PROTECTED]
> > >> > > > > 612-664-3367
> > >> > > > >
> > >> > > > > "Emotion should reflect reason not guide it"
> > >> > > >
> > >> > > > [GroupStudy.com removed an attachment of type text/x-vcard which
> > >> had a
> > >> >name
> > >> > > > of khramov.vcf]
> > >> > > --
> > >> > > David Madland
> > >> > > CCIE# 2016
> > >> > > Senior Network Engineer
> > >> > > Qwest Communications
> > >> > > 612-664-3367
> > >> >
> > >> >[GroupStudy.com removed an attachment of type text/x-vcard which had
a
> > >> name
> > >> >of khramov.vcf]
> > >> groupstudy.com/form/read.php?f=7&i=21133&t=21051
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> > >>
> > >>________________________
> > >>
> > >>Priscilla Oppenheimer
> > >>http://www.priscilla.com
> >
> >________________________
> >
> >Priscilla Oppenheimer
> >http://www.priscilla.com
> ________________________
>
> Priscilla Oppenheimer
> http://www.priscilla.com
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