From: Fred Ingham (fningham@xxxxxxxxxxxxxxxx)
Date: Mon Dec 18 2000 - 12:52:43 GMT-3
Kurt: You're not missing anything. The scenario is configuring a
router as a host and using ip gdp irdp to discover the router. Cisco's
implementation of gdp irdp
prefers the lower priority. Using a router as a host is a simple means
of testing irdp if you don't have an irdp capable host available.
Cheers, Fred
Kurt Radecki wrote:
>
> Fred,
>
> Tell me what I'm missing. I haven't had the time to try it but according
> to the documentation a higher value is preferred, even on a Cisco router:
> http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/12cgcr/np1_r/
1rprt2/1ripadr.htm#xtocid1229226
>
> Thanks. -Kurt
>
> On Mon, 18 Dec 2000, Fred Ingham wrote:
>
> > What you say is true. Using cisco gdp irdb the lower priority is
> > preferred. Other hosts such as Sun Solaris conform to the RFC and the
> > higher priority is preferred (I don't have a Sun to test this out but I
> > believe it is true). If you see this on a lab, go by the RFC (or ask
> > the proctor).
> >
> > Cheers, Fred.
> >
> > Lauren_Dygowski@vanguard.com wrote:
> > >
> > > While the RFC says higher, in practical use with Cisco configuration the
lower
> > > priority number is going to be preferred.
> > >
> > > In this example, a router has no ip routing and global command ip gdp ird
p and
> > > is on a segement with two routers running IRDP. Notice default gateway i
s from
> > > the router with lower priority.
> > >
> > > router1#show ip ro
> > > Gateway Using Interval Priority Interface
> > > 172.16.78.1 IRDP 18 90 Ethernet2/2
> > > 172.16.78.2 IRDP 18 100 Ethernet2/2
> > > Default gateway is 172.16.78.1
> > >
> > > "Wu, Jiang" <wujiang@bj163.com> on 12/18/2000 07:17:50 AM
> > > Please respond to "Wu, Jiang" <wujiang@bj163.com>
> > >
> > > To: Arthayuth.B@datacraft-asia.com
> > > cc: ccielab@groupstudy.com (bcc: Lauren Dygowski/IT/VGI)
> > > Subject: Re: IRDP
> > >
> > > Router A should have higher preference value.
> > > http://www.faqs.org/rfcs/rfc1256.html
> > >
> > > Regards,
> > > Wu
> > >
> > > ----- Original Message -----
> > > From: <Arthayuth.B@datacraft-asia.com>
> > > To: <ccielab@groupstudy.com>
> > > Sent: Monday, December 18, 2000 7:42 PM
> > > Subject: IRDP
> > >
> > > > Hi All,
> > > >
> > > > I want to know what if I have 2 routers in same ethernet network. and I
want
> > > > router A is high priority than Router B for gateway without use hsrp.
> > > >
> > > > router A should have ip irdp vaule more or less than router B?
> > > >
> > > > =======================================================
> > > > Arthayuth Boonruengrod
> > > > Network Consultant
> > > > CIP, CCNA, CCDA
> > > > Datacraft (Thailand) Ltd.
> > > > *14th Floor, Lake Rajada Building, Ratchadaphisek Road, Khlong-Toey, Ba
ngkok
> > > > 10110
> > > > * arthayuth.b@datacraft-asia.com http:\\www.datacraft-asia.com
> > > > * (662)264-0400, 661-9368 Ext# 104 Fax: (662)264-0405, 661-9488 *
> > > > (661)684-8548
> > > > =======================================================
> > > >
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