Which IOS version are you using? Would you mind to send us the configs?
Here is mine with 12.2S:
=== R1 ===
!
version 12.2
!
ip subnet-zero
!
!
ip cef
!
interface Ethernet1/0
ip address 10.4.5.213 255.255.255.0
duplex half
!
interface FastEthernet2/0
ip address 10.0.0.3 255.255.255.0
duplex half
!
router rip
network 10.0.0.0
!
ip classless
ip route 0.0.0.0 0.0.0.0 10.4.5.1
!
end
--- sh ip route ---
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter
area
* - candidate default, U - per-user static route, o - ODR
P - periodic downloaded static route
Gateway of last resort is 10.4.5.1 to network 0.0.0.0
10.0.0.0/24 is subnetted, 2 subnets
C 10.0.0.0 is directly connected, FastEthernet2/0
C 10.4.5.0 is directly connected, Ethernet1/0
S* 0.0.0.0/0 [1/0] via 10.4.5.1
=== End of R1 ===
=== R2 ===
!
version 12.2
!
ip subnet-zero
!
ip cef
!
interface FastEthernet2/0
ip address 10.0.0.2 255.255.255.0
duplex half
!
router rip
network 10.0.0.0
!
ip classless
!
end
--- sh ip route ---
Gateway of last resort is not set
10.0.0.0/24 is subnetted, 2 subnets
C 10.0.0.0 is directly connected, FastEthernet2/0
R 10.4.5.0 [120/1] via 10.0.0.3, 00:00:22, FastEthernet2/0
=== End of R2 ===
Thanks,
Zsombor
At 12:27 AM 7/17/2003 +0000, Priscilla Oppenheimer wrote:
>Zsombor Papp wrote:
> >
> > At 10:19 PM 7/16/2003 +0000, Priscilla Oppenheimer wrote:
> > >To be fair, I just checked, and Doyle didn't say anthing about
> > >redistribution.
> > >
> > >The example simply shows configuring
> > >
> > >ip route 0.0.0.0 0.0.0.0 192.168.1.82
> > >
> > >The text says that the router that has that config (which is
> > running RIP by
> > >the way) advertises the default to other RIP routers.
> > >
> > >It goes on to say:
> > >
> > >"After a default route is identified in the routing table,
> > RIP, EIGRP, IGRP
> > >will automatically advertise it."
> > >
> > >That's right, isn't it?
> >
> > I don't think so. That's what the original poster questioned
> > and I agree
> > with him. If it is right, then I take back everything.
>
>RIP does automatically advertise a default route on my routers. Check this
>out:
>
>Albany#show ip route
>
>Gateway of last resort is 10.10.0.2 to network 0.0.0.0
>
> 10.0.0.0 255.255.255.0 is subnetted, 1 subnets
>C 10.10.0.0 is directly connected, Ethernet0
> 172.16.0.0 255.255.255.0 is subnetted, 2 subnets
>C 172.16.50.0 is directly connected, Ethernet1
>C 172.16.20.0 is directly connected, TokenRing0
>R* 0.0.0.0 0.0.0.0 [120/1] via 10.10.0.2, 00:00:06, Ethernet0
>
>
>Albany learned that last route from another router that is configured for
>RIP on their shared network and has a static route that points to another
>router. I didn't configure redistribution.
>
>But, alas, this didn't work on IGRP or EIGRP.
>
>So if anyone has a good errata for Doyle, Volume I, is this in it?
>
>Priscilla
>
> >
> > Well, except that about BGP, there I am 100% sure nothing
> > happens
> > automatically. :)
> >
> > > If it were OSPF you would need redistribution
> >
> > And a 'default-info orig' as well.
> >
> > Thanks,
> >
> > Zsombor
> >
> > >, but
> > >not for those others?
> > >
> > >That was the original question. Sorry I confused it with the
> > statement from
> > >CertZone, which really meant to cover a different situation.
> > :-)
> > >
> > >Thanks,
> > >
> > >Priscilla
> > >
> > >John Neiberger wrote:
> > > >
> > > > >>>> Zsombor Papp 7/16/03 3:42:18 PM >>>
> > > > >>I looked at that page in Doyle's book and I thought it's
> > just
> > > > a simple
> > > > >>mistake, or maybe IOS changed since he wrote that, but
> > after
> > > > reading
> > > > this:
> > > > >>
> > > > >>>"Handling of default routes varies from protocol to
> > > > protocol. RIP, IGRP,
> > > > >>>EIGRP and BGP automatically redistribute default routes
> > > > while OSPF and
> > > > >IS-IS
> > > > >>>require you to explicitly advertise them with the
> > > > default-information
> > > > >>>originate statement in your router configuration."
> > > > >>
> > > > >>I start to think that these folks (Doyle included) have
> > some
> > > > basic problem
> > > >
> > > > >>with simple terminology.
> > > > >
> > > > >Actually this terminology might not be that simple after
> > all,
> > > > as it is not
> > > >
> > > > >clear whether something was redistributed unless it is
> > > > advertised to peers.
> > > >
> > > > >So revised statement below.
> > > > >
> > > > >Also, I just realized that my above sentence sounds less
> > > > respectful than I
> > > >
> > > > >intended, so I thought I would mention that I learnt a lot
> > > > from "Routing
> > > > >TCP/IP" and it's probably the most useful networking book
> > I've
> > > > ever read.
> > > > >
> > > > >> There is no way "BGP automatically redistributes default
> > > > routes".
> > > > >> However it's true that OSPF and ISIS don't advertise the
> > > > default route
> > > > >> even if it's redistributed into them, unless
> > > > 'default-information
> > > > >> originate' is specified.
> > > > >>
> > > > >>So the statement should be something like "RIP, IGRP,
> > EIGRP
> > > > and BGP
> > > > >>automatically advertise default routes that are
> > redistributed
> > > > into them,
> > > > >>while OSPF and ISIS require the 'default-information
> > > > originate'
> > > > >>statement." At least I hope that this is a true
> > statement...
> > > > :)
> > > > >
> > > > >Probably this one is better:
> > > > >
> > > > >"RIP, IGRP, EIGRP and BGP automatically accept default
> > routes
> > > > that are
> > > > >redistributed into them, while OSPF and ISIS silently
> > reject
> > > > the
> > > > >redistributed default route unless 'default-information
> > > > originate' is
> > > > >configured."
> > > > >
> > > > >Thanks,
> > > > >
> > > > >Zsombor
> > > >
> > > > Actually, I think I wrote that line and it is a little
> > > > confusing, perhaps. I
> > > > took great care to be specific with my terminology but it's
> > > > easy to slip
> > > > back into bad habits from time to time. Many people use
> > terms
> > > > in a haphazard
> > > > way (like redistribute, advertise, originate, export,
> > import,
> > > > accept)
> > > > without fully considering the implications of using one term
> > > > over another.
> > > > With Howard's approval perhaps we should have CZ update that
> > > > line with your
> > > > edited version! I like your version better, anyway. :-)
> > > >
> > > > Thanks,
> > > > John
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=72450&t=72211
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