From: mcaplan.cs@xxxxxxxxxxxxxxx
Date: Fri May 04 2001 - 11:32:18 GMT-3
Raymond,
Yes, but my observation (and the routes shown in the answers from Marc's
labs) show that some of the connected interfaces are redistributed as E2 and
some are not.
R3----frame PVC-----R1
This is from CCbootcamp lab 2 as a reminder
Look at the routing table of R3 below:
Gateway of last resort is 173.168.40.2 to network 0.0.0.0
B 4.0.0.0/8 [200/0] via 173.168.40.2, 01:17:23
173.168.0.0/24 is subnetted, 1 subnets
C 173.168.40.0 is directly connected, Serial1
10.0.0.0/8 is variably subnetted, 8 subnets, 3 masks
O 10.10.1.1/32 [110/64] via 10.10.1.1, 02:03:35, Serial0
C 10.10.0.0/16 is directly connected, Serial0
O 10.10.1.5/32 [110/128] via 10.10.1.1, 02:03:35, Serial0
C 10.3.0.0/16 is directly connected, TokenRing0
O IA 10.1.0.0/16 [110/74] via 10.10.1.1, 02:03:35, Serial0
O E1 10.20.0.0/16 [110/84] via 10.10.1.1, 02:03:35, Serial0
C 10.33.2.0/24 is directly connected, Loopback1
C 10.33.1.0/24 is directly connected, Loopback0
11.0.0.0/16 is subnetted, 1 subnets
O 11.1.0.0 [110/138] via 10.10.1.1, 02:03:36, Serial0
B 12.0.0.0/8 [20/0] via 10.10.1.1, 00:27:56
B 41.0.0.0/8 [200/0] via 173.168.40.2, 01:17:26
44.0.0.0/24 is subnetted, 1 subnets
B 44.1.1.0 [200/0] via 173.168.40.2, 01:17:26
137.20.0.0/24 is subnetted, 1 subnets
O E1 137.20.20.0 [110/84] via 10.10.1.1, 02:03:37, Serial0
B 177.1.0.0/16 [20/0] via 10.10.1.1, 00:27:56
S* 0.0.0.0/0 [1/0] via 173.168.40.2
There are 5 connected interfaces. The command 'redist connec subnet' on R3
produces the following routing table on R1
Gateway of last resort is 10.10.1.3 to network 0.0.0.0
B 4.0.0.0/8 [20/0] via 10.10.1.3, 01:11:21
173.168.0.0/24 is subnetted, 1 subnets
O E2 173.168.40.0 [110/20] via 10.10.1.3, 01:39:03, Serial0.2
10.0.0.0/8 is variably subnetted, 9 subnets, 3 masks
C 10.10.0.0/16 is directly connected, Serial0.2
O 10.10.1.3/32 [110/64] via 10.10.1.3, 02:00:39, Serial0.2
O 10.10.1.5/32 [110/64] via 10.10.1.5, 02:00:39, Serial0.2
O 10.3.0.0/16 [110/70] via 10.10.1.3, 02:00:39, Serial0.2
C 10.1.0.0/16 is directly connected, Ethernet0
C 10.20.0.0/16 is directly connected, Serial0.1
O E2 10.33.2.0/24 [110/20] via 10.10.1.3, 01:39:04, Serial0.2
O E2 10.33.1.0/24 [110/20] via 10.10.1.3, 01:39:04, Serial0.2
O IA 10.33.0.0/16 [110/65] via 10.10.1.3, 02:00:40, Serial0.2
11.0.0.0/16 is subnetted, 1 subnets
O 11.1.0.0 [110/74] via 10.10.1.5, 02:00:41, Serial0.2
B 12.0.0.0/8 [200/0] via 11.1.1.6, 00:26:13
B 41.0.0.0/8 [20/0] via 10.10.1.3, 01:11:23
44.0.0.0/24 is subnetted, 1 subnets
B 44.1.1.0 [20/0] via 10.10.1.3, 01:11:23
C 192.168.1.0/24 is directly connected, Loopback0
137.20.0.0/24 is subnetted, 1 subnets
D 137.20.20.0 [90/2195456] via 10.20.1.1, 02:00:41, Serial0.1
B 177.1.0.0/16 [200/0] via 11.1.1.6, 00:26:13
O*E1 0.0.0.0/0 [110/564] via 10.10.1.3, 02:00:41, Serial0.2
As you can see there are only 3 E2 routes. What about the other 2:
ie 10.10.0.0/16 and 10.3.0.0/16 .
Regards
Mark
> ----------
> From: rsevier[SMTP:rsevier@zealousolutions.com]
> Sent: Freitag, 4. Mai 2001 16:20
> To: Lachlan Kidd; mcaplan.cs@clearstream.com; ccielab@groupstudy.com
> Subject: RE: ccbootcamp lab 2
>
> Mark- You can use a route map to redistribute only the connected
> interfaces
> that you wish:
>
> redistribute connected subnets route-map muther
>
> access-list 1 permit 173.168.40.0 0.0.0.255
> route-map muther permit 10
> match ip address 1
>
> and Lachlan is right about it redistributing everything that is showing up
> as connected in the route table.
>
> Raymond
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> Lachlan Kidd
> Sent: Thursday, May 03, 2001 1:53 AM
> To: mcaplan.cs@clearstream.com; ccielab@groupstudy.com
> Subject: RE: ccbootcamp lab 2
>
>
> Hi Mark,
> I think the answer goes something like this. The 'redistribute'
> command
> only works on what is in the route table. If you redistribute IGRP routes
> then anything with an I next to it will get redistributed. The same
> applies
> to connected routes. If it's in the route table with a 'C' next to it, it
> will get redistributed regardless of what protocol is running on that
> interface. HTH, feel free to let me know if I've missed the point
> completely.
> Regards,
> Lachlan
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> mcaplan.cs@clearstream.com
> Sent: Thursday, 3 May 2001 6:12:PM
> To: ccielab@groupstudy.com
> Subject: FW: ccbootcamp lab 2
>
>
> Has anybody got any advice with respect to this one - see thread below:
>
> The fundamental question is :
>
> Does 'redistribute connected subnets' put E2 routes into OSPF even for
> interfaces that are part of the OSPF process ?
>
> Thanks
>
> Mark
>
> > ----------
> > From: TCN CAPLAN Mark - Service Provider
> > Sent: Mittwoch, 2. Mai 2001 16:11
> > To: 'ccielab@groupstudy.com'
> > Subject: ccbootcamp lab 2
> >
> > Hi,
> >
> > I've got a question about Marc's bootcamp lab2.
> >
> > The routing table for R1 shows two subnets advertised as E2 routes plus
> > the summary:
> >
> > O E2 10.33.2.0/24 [110/20] via 10.10.1.3, 00:00:01, Serial0.2
> > O E2 10.33.1.0/24 [110/20] via 10.10.1.3, 00:00:01, Serial0.2
> > O IA 10.33.0.0/16 [110/65] via 10.10.1.3, 00:00:02, Serial0.2
> >
> > Now the IA route comes from the 'area 3 range 10.33.0.0 255.255.0.0'
> > statement on R3. And the E2 routes evidently come from the 'redistribute
> > connected subnets' command on R3.
> >
> > I dont really understand why the E2 routes are there. The loopback
> > interfaces concerned are in Area3 and part of the OSPF process. Its not
> as
> > if the other connected interfaces are redistributed as E2 eg 10.3.1.1/16
> > which is part of Area 0. So why these 2 subnets ? My understanding was
> > that 'redistribute connected subnets' would only redistribute subnets on
> > connected interfaces if they weren't part of the OSPF process. But the
> > evidence shows otherwise. Is the rule that it redistributes any
> interfaces
> > in a different area as E2 aswell.
> >
> > Any help would be appreciated
> >
> > Thanks
> >
> > Mark
> >
>
>
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