From: Coleman, Jason (ColemaJ@netsolve.net)
Date: Tue Jan 07 2003 - 18:41:39 GMT-3
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
>
>>==========================================================================
=========
> >>
> >>.
>
============================================================================
=======
> Pendaftaran Domain Baru Hanya di PlasaCom
>
============================================================================
=======
> .
.
.
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