From: Chad Marsh (chad@xxxxxx)
Date: Tue Jan 11 2000 - 01:45:36 GMT-3
Odd, I see your route table is missing the summary to Null0, I assume
this is after a reboot?
If you assign the summary-address without rebooting, does the route get
re-distributed into IGRP?
If not, can you assign commands in R2 while monitoring a debug output
from R3? If so, try this:
On R3, turn on 'debug ip routing'. On R2, do a 'clear ip ospf redist' (I
think), then see if anything happens to R3. Also on R3 do a 'clear ip
rou *' and see if the route gets installed.
In seems like a pretty straightforward config to me, and your configs
look correct. I have summarized loopbacks from /32 into /24 and
redistributed from OSPF to IGRP and RIP many times, and have never come
across this problem. What rev's of IOS are you running?
Chad
Darrel Hinshaw wrote:
>
> Chad,
>
> Here you go.
>
> Here is some additional information.
>
> If I remove the Summary-Address commands and then add them back I get a
> 150.100.5.0/24 route to null0 (Expected). I do a wr mem...reboot and guess
> what no 150.100.5.0/24 to null0. If I go through the previously mentioned
> process it will reappear. Does the fact that I am summarizing an address
> assigned to a Loopback have anything to do with it? I'm just wondering if
> Loopback's come up so quickly that the summary-address has to be reapplied
> to take effect. I appreciate any input here.
>
> Regards,
>
> Darrel
>
> Codes: C - connected, S - static, I - IGRP, 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, E - EGP
> i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, * - candidate
> default
> U - per-user static route, o - ODR
>
> Gateway of last resort is not set
>
> 150.100.0.0/16 is variably subnetted, 12 subnets, 2 masks
> C 150.100.128.0/24 is directly connected, Ethernet0
> I 150.100.129.0/24 [100/1600] via 150.100.128.2, 00:01:00, Ethernet0
> C 150.100.5.1/32 is directly connected, Loopback0
> O IA 150.100.3.0/24 [110/129] via 150.100.4.5, 00:02:13, Serial0.110
> O E2 150.100.1.0/24 [110/10] via 150.100.4.5, 00:02:13, Serial0.110
> C 150.100.4.0/24 is directly connected, Serial0.110
> O IA 150.100.14.0/24 [110/74] via 150.100.4.5, 00:02:14, Serial0.110
> R2#
> -----Original Message-----
> From: Chad Marsh [mailto:chad@wa.net]
> Sent: Monday, January 10, 2000 8:58 PM
> To: Darrel E. Hinshaw
> Subject: Re: VLSM ---> FLSM or OSPF --> IGRP
>
> Could I see a 'show ip route' and the full config of R2 please?
>
> Chad Marsh
> CCIE# 5185
>
> "Darrel E. Hinshaw" wrote:
> >
> > Everyone,
> >
> > Sorry for responding to this but I have a beef. Could everyone please read
> > and ReRead an e-mail before you decide to reply to it. As you can see from
> > the gentleman's response below (I do Appreciate the response but just wish
> > that it had been appropriate) he provided valid correct information but if
> > he had read my original e-mail he would have seen the summary-address
> > command that he referred to and could have perhaps shed more useful light
> on
> > the issue.
> >
> > This is not meant to bruise anybody's feeling but rather this should be
> > taken as constructive criticism that will allow this list to become more
> > productive for all of us.
> >
> > ***** RESPONSE ******
> >
> > Summarise all routes to /24 at area boundaries.Since major class is same
> and
> > mask is same all routes shoud go in to IGRP.U can use summary-address also
> > for this purpose.
> >
> > ***** ORIGINAL *****
> >
> > All:
> >
> > First I'm sorry for making this so long.
> >
> > Great deal of difficulty here. The usual parameter of NO static routes of
> > any kind are in effect.
> >
> > R1-->S0------(OSPF 0)------S0<--R2-->E0------(IGRP)------E0<--R3-->E1
> >
> > Interface Addresses:
> > R1/S0: 150.100.4.5/24 OSPF Area 0
> > R1/L0: 150.100.5.5/30 OSPF Area 0
> > R2/S0: 150.100.4.3/24 OSPF Area 0
> > R2/L0: 150.100.5.9/30 OSPF Area 0
> > R2/E0: 150.100.128.1/24 IGRP
> > R3/E0: 150.100.128.2/24 IGRP
> > R3/E1: 150.100.129.1/24 IGRP
> >
> > Problem: How do I distribute OSPF into IGRP on R2? I have configured but I
> > am unable to get any 150.100.5.x addresses to show up in R3's routing
> table.
> > Below are the relevant Configs.
> >
> > Router 1:
> >
> > router ospf 5
> > network 150.100.4.0 0.0.0.255 area 0
> > network 150.100.5.5 0.0.0.0 area 0
> > network 150.100.14.0 0.0.0.255 area 3
> > area 0 authentication message-digest
> > area 3 range 150.100.14.0 255.255.255.0
> > area 3 virtual-link 150.100.3.1
> >
> > Router 2:
> >
> > router ospf 5
> > summary-address 150.100.5.0 255.255.255.0
> > redistribute igrp 5 subnets route-map igrpn2ospf
> > network 150.100.4.0 0.0.0.255 area 0
> > network 150.100.5.9 0.0.0.0 area 0
> > area 0 authentication message-digest
> > area 0 range 150.100.4.0 255.255.255.0
> > area 0 range 150.100.5.0 255.255.255.0
> >
> > router igrp 5
> > redistribute ospf 5 metric 10000 10 255 1 1500 route-map ospfn2igrp
> > passive-interface Loopback0
> > passive-interface Serial0
> > passive-interface Serial0.110
> > network 150.100.0.0
> > network 0.0.0.0
> >
> > ip classless
> >
> > access-list 1 permit 150.100.128.0 0.0.127.255
> > access-list 2 deny 150.100.128.0 0.0.127.255
> > access-list 2 permit any
> > !
> > route-map igrpn2ospf permit 10
> > match ip address 1
> > !
> > route-map ospfn2igrp permit 10
> > match ip address 2
> >
> > Router 3:
> >
> > router igrp 5
> > network 150.100.0.0
> >
> > ip classless
> >
> > ANY help would be appreciated.
> >
> > Regards,
> >
> > Darrel Hinshaw
> >
> > PS If you have actually read this far . . . THANKS.
> >
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