From: Matthew Poole (matthew.poole@blueyonder.co.uk)
Date: Wed Jan 08 2003 - 07:10:46 GMT-3
Maybe I should have posted my routing table from before and after
summarisation commands were placed on the interface:
Before summarisation
D EX 192.168.10.0/24 [170/2195456] via 10.10.10.1, 00:00:00, Serial1
172.16.0.0/32 is subnetted, 3 subnets
D EX 172.16.1.1 [170/2195456] via 10.10.10.1, 00:00:00, Serial1
D EX 172.16.3.1 [170/2195456] via 10.10.10.1, 00:00:00, Serial1
D EX 172.16.2.1 [170/2195456] via 10.10.10.1, 00:00:00, Serial1
10.0.0.0/8 is variably subnetted, 6 subnets, 2 masks
D 10.3.1.0/24 [90/2195456] via 10.10.10.1, 00:00:00, Serial1
D 10.2.2.0/24 [90/2297856] via 10.10.10.1, 00:00:00, Serial1
D 10.1.1.0/24 [90/2297856] via 10.10.10.1, 00:00:01, Serial1
C 10.10.10.0/24 is directly connected, Serial1
D EX 10.200.200.1/32 [170/2195456] via 10.10.10.1, 00:00:01, Serial1
D EX 10.100.100.1/32 [170/2195456] via 10.10.10.1, 00:00:01, Serial1
After Summarisation
D EX 192.168.10.0/24 [170/2195456] via 10.10.10.1, 00:00:00, Serial1
D 172.16.0.0/16 [90/2195456] via 10.10.10.1, 00:00:00, Serial1
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
D 10.0.0.0/8 [90/2195456] via 10.10.10.1, 00:00:00, Serial1
C 10.10.10.0/24 is directly connected, Serial1
HTH
----- Original Message -----
From: "Coleman, Jason" <ColemaJ@netsolve.net>
To: "'Matthew Poole'" <matthew.poole@blueyonder.co.uk>; "Ali Fahmi"
<afahmi@plasa.com>; <ccielab@groupstudy.com>
Cc: <acarswell@nc.rr.com>
Sent: Tuesday, January 07, 2003 9:41 PM
Subject: RE: need confirmation about "eigrp summary-adddress"
> Your configs don't show multiple EIGRP AS.
> It seems to me that the /24 route may be coming from the mutual
> redistribution between the two AS in the Doyle example.
>
> I'm going now to setup in my lab. I'll post configs and results once
> complete.
>
> Jason Coleman - CCNP, CCDP
> Customer Engineer
> Network Management Center - Austin
> (ph) 512-340-3134
> (email) colemaj@netsolve.com
>
> -----Original Message-----
> From: Matthew Poole [mailto:matthew.poole@blueyonder.co.uk]
> Sent: Tuesday, January 07, 2003 2:05 PM
> To: Ali Fahmi ;
> ccielab@groupstudy.com
> Cc: acarswell@nc.rr.com
> Subject: Re: need confirmation about "eigrp summary-adddress"
>
> Hi,
> I've just been labbing this and am getting the same result as Ali.
>
> Rt6----------------------Rt7-----------------------------R8
> OSPF 1 s0/0 s0/2 EIGRP 1 s1
> <------------------------><------------------------------->
>
> Snippets of config:-
> Rt7
> interface Serial0/2
> ip address 10.10.10.1 255.255.255.0
> ip summary-address eigrp 1 172.16.0.0 255.255.0.0 5
> ip summary-address eigrp 1 10.0.0.0 255.0.0.0 5
> clockrate 128000
> router eigrp 1
> redistribute ospf 1 metric 128000 100 255 1 1500
> network 10.0.0.0
> no auto-summary
> router ospf 1
> log-adjacency-changes
> network 192.168.10.2 0.0.0.0 area 0
>
> Rt7 routing table:-
>
> R7-Middle#sipr
> 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, ia - IS-IS inter
> area
> * - candidate default, U - per-user static route, o - ODR
> P - periodic downloaded static route
>
> Gateway of last resort is not set
>
> C 192.168.10.0/24 is directly connected, Serial0/0
> 172.16.0.0/16 is variably subnetted, 4 subnets, 2 masks
> D 172.16.0.0/16 is a summary, 00:09:38, Null0
> O 172.16.1.1/32 [110/65] via 192.168.10.1, 00:15:40, Serial0/0
> O 172.16.3.1/32 [110/65] via 192.168.10.1, 00:15:40, Serial0/0
> O 172.16.2.1/32 [110/65] via 192.168.10.1, 00:15:40, Serial0/0
> 10.0.0.0/8 is variably subnetted, 5 subnets, 2 masks
> C 10.3.1.0/24 is directly connected, Ethernet0/0
> D 10.0.0.0/8 is a summary, 00:13:54, Null0
> C 10.10.10.0/24 is directly connected, Serial0/2
> C 10.2.2.0/24 is directly connected, Loopback3
> C 10.1.1.0/24 is directly connected, Loopback2
>
> N.B. the loopbacks and ethernet within 10 network, also summary to null 0.
>
> Rt8 Routing table:
>
> R8-Right#sh ip route
> 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, ia - IS-IS inter
> area
> * - candidate default, U - per-user static route, o - ODR
> P - periodic downloaded static route
>
> Gateway of last resort is not set
>
> D EX 192.168.10.0/24 [170/2195456] via 10.10.10.1, 00:10:36, Serial1
> D 172.16.0.0/16 [90/2195456] via 10.10.10.1, 00:10:36, Serial1
> 10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
> D 10.0.0.0/8 [90/2297856] via 10.10.10.1, 00:10:37, Serial1
> C 10.10.10.0/24 is directly connected, Serial1
>
> It appears from this that Doyle is wrong (again), any ideas anybody??
>
> Mat
> ----- Original Message -----
> From: "Ali Fahmi " <afahmi@plasa.com>
> To: <ccielab@groupstudy.com>
> Cc: <ccielab@groupstudy.com>
> Sent: Tuesday, January 07, 2003 6:08 PM
> Subject: Re: need confirmation about "eigrp summary-adddress"
>
>
> > Hi Todd,
> > I disabled auto-summary feature on all routers,
> > I tried to summarize my local network (lo0 and lo1) to
> > 192.168.0.0/16
> > with command ip summary-address eigrp 1 192.168.0.0
> > 255.255.0.0
> > and it works, I have checked in router B, I saw
> > summarized address
> > so my conclusion is "ip summary-address " can be used to
> > summarize
> > local-network,
> > I just want to know whether statement in jeff Doyle book
> > is correct or not.
> > thx
> >
> > Ali
> >
> >
> > On Tue, 07 Jan 2003 12:50:50 -0500
> > Todd Carswell <acarswell@nc.rr.com> wrote:
> > >Ali,
> > >
> > >Do you have "auto-summary" disabled under the EIGRP
> > >routing process? If not, then the default behavior of
> > >EIGRP is to summarize locally connected subnets. Your
> > >loopback IP addresses may appear to be getting summarized
> > >by the "ip summary-address" command but the auto-summary
> > >feature may be doing it instead.
> > >
> > >Issue the command "no auto-summary" under the EIGRP
> > >process, clear your EIGRP neighbors and re-check your
> > >routing tables. Your loopbacks should not be getting
> > >summarized anymore. The "ip summary-address" command
> > >applies only to non-local networks.
> > >Later.
> > >
> > >Todd
> > >
> > >
> > >
> > >Ali Fahmi wrote:
> > >
> > >>Hi All, refer to Routing TCP IP Vol I Book By Jeff
> > >>Doyle, pg 726 ,
> > >>3rd paragraph, it says, " the eigrp summarization
> > >>applies only to
> > >>routes being redistributed inte EIGRP process domain"
> > >>
> > >>I try in my lab as follow,
> > >>
> > >>router A --------------------------------Router B
> > >>Lo0:192.168.1.0
> > >>Lo1:192.168.2.0
> > >>
> > >>All router above are running EIGRP proc.ID 1
> > >>refer to Jeff Doyle Book, I can not summarize internal
> > >>routes, but in
> > >>my lab, I can do it, anybody can explain?
> > >>
> > >>thx,
> > >>Ali
> >
>
>>==========================================================================
> =========
> > >>
> > >>Pendaftaran Domain Baru Hanya di PlasaCom
> >
>
>>==========================================================================
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> > >>
> > >>.
> >
>
============================================================================
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> > Pendaftaran Domain Baru Hanya di PlasaCom
> >
>
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> =======
> > .
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