Re: OSPF-Doyle Vol 1 pp 531-533 - errata

From: routerjocky (elouie@xxxxxxxxx)
Date: Fri Oct 05 2001 - 01:52:44 GMT-3


   
discrepancy resolved. unless using redist rip metric 10 SUBNETS, the
172.19.35.0/25 route will not be redistributed into OSPF since it's not
classful. And the routing table on p533 is incorrect - here's what it looks
like

Rubens#sh ip ro
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

O E2 192.168.90.0/24 [110/10] via 192.168.30.10, 00:00:03, Serial0
O E2 192.168.105.0/24 [110/10] via 192.168.30.10, 00:00:04, Serial0
     192.168.30.0/29 is subnetted, 1 subnets
C 192.168.30.8 is directly connected, Serial0
O E2 192.168.60.0/24 [110/10] via 192.168.30.10, 00:00:04, Serial0
     192.168.10.0/24 is variably subnetted, 2 subnets, 2 masks
O IA 192.168.10.32/28 [110/1007] via 192.168.30.10, 00:00:04, Serial0
O IA 192.168.10.0/27 [110/997] via 192.168.30.10, 00:00:04, Serial0
     172.19.0.0/25 is subnetted, 1 subnets
O E2 172.19.35.0 [110/10] via 192.168.30.10, 00:00:04, Serial0
O E2 192.168.80.0/24 [110/10] via 192.168.30.10, 00:00:04, Serial0
     192.168.20.0/30 is subnetted, 1 subnets
O IA 192.168.20.0 [110/933] via 192.168.30.10, 00:00:04, Serial0
O E2 192.168.70.0/24 [110/10] via 192.168.30.10, 00:00:04, Serial0
O E2 192.168.100.0/24 [110/10] via 192.168.30.10, 00:00:07, Serial0
O E2 192.168.101.0/24 [110/10] via 192.168.30.10, 00:00:07, Serial0

and the proper config on Matisse is

router ospf 40
 redistribute rip metric 10 subnets
 network 192.168.10.2 0.0.0.0 area 192.168.10.0
 network 192.168.10.33 0.0.0.0 area 192.168.10.0

thanks to all who responded to this problem

-e-
  ----- Original Message -----
  From: routerjocky
  To: ccielab@groupstudy.com ; cisco@groupstudy.com
  Sent: Thursday, October 04, 2001 2:30 AM
  Subject: OSPF-Doyle Vol 1 pp 531-533

  Okay, I gotta figure that something is wrong, but I don't get 172.19.35.0
advertised at Rubens unless I keep the secondary address on Matisse as an OSPF
network. It also shows the route as IA, not E2, indicating it's an OSPF
route, and I sure don't get the mask mismatch problem, as it's subnetted as a
/25, not as a /16.

  Anyone else have the same result?
  Can anyone explain it?
  Is there something rotten in Denmark? (besides linburger cheese?)
  Maybe someone snuck the network stmt for 172.19.35.0 into ospf 40 when he
wasn't looking?
  Or does this constitute errata? (it's not in the existing errata sheet)

  thanks
  -e- (being onery tonight)
  May the route be with you
  Switch if you must, route if you can ;-)
  http://members.home.net/airwrck
  ..and this one, just for Peter...
  'Routing between VLANS' is a valid statement
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