From: Mas Kato (tealp729@xxxxxxxx)
Date: Thu May 03 2001 - 22:55:37 GMT-3
Julie Ann,
I haven't done that lab yet, but after a quick glance, I'm a little
confused trying to reconcile what Task One, step 1 says (great start,
eh?), what Task One, step 4 says and the addressing you're using.
But it sounds like the bottom-line is the solution specifies that the
advertised next-hop is r2's own Ethernet and not the next-hop configured
in r2's static route? Could it be a typo? Because it looks like the
forwarding address is working as it should, so to force the solution it
needs to be zeroed out...
I found this on CCO: http://www.cisco.com/warp/customer/104/10.html
What if you change the OSPF network type on r2's and r5's Ethernets to
point-to-multipoint?
Regards,
Mas Kato
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Connary, Julie Ann
Sent: Thursday, May 03, 2001 5:12 PM
To: ccielab@groupstudy.com
Subject: originating an ospf default route
Hi,
working a lab that has the following:
r2------ethernet ---r5-----
r2's e0 = 137.20.20.2
r5's e0 = 137.20.20.10
r2 has an ip route 0.0.0.0 0.0.0.0 137.20.20.3 (another router on the
ethernet.)
r2 has an ip ospf default information-originate always metric-type 1
statement.
r5 sees this default route as:
O*E1 0.0.0.0/0 [110/21] via 137.20.20.3, 00:01:40, Ethernet0
this is ccbootcamp lab 5. However - in the routing tables provided R5
should
see this as
O*E1 0.0.0.0/0 [110/21] via 137.20.20.2, 00:02:40, Ethernet0
If I look at the database I see:
OSPF Router with ID (172.168.200.1) (Process ID 1)
Type-5 AS External Link States
Routing Bit Set on this LSA
LS age: 143
Options: (No TOS-capability, DC)
LS Type: AS External Link
Link State ID: 0.0.0.0 (External Network Number )
Advertising Router: 200.200.200.1
LS Seq Number: 80000006
Checksum: 0x9C6E
Length: 36
Network Mask: /0
Metric Type: 1 (Comparable directly to link state metric)
TOS: 0
Metric: 20
Forward Address: 137.20.20.3
External Route Tag: 1
So my question is - how in the answers does the forwarding address
become
router 2 (137.20.20.2) and not 137.20.20.3?
Is there a trick to this that I am missing? Or should OSPF when it
originates a default route within the same area not change the
forwarding address?
Thanks,
Julie Ann
p.s. I also got the ospf-demand circuit to work in 5b by making sure
that
my ISDN interface was not being redistributed
back into ospf from igrp and having LSA type 5's keep the circuit up.
The
lab says that ospf demand circuit does not
work for this topology - but mine worked fine.
------------------------------------------------------------------------
Julie Ann Connary
| | Network Consulting Engineer
||| ||| Federal Support Program
.|||||. .|||||. 13635 Dulles Technology
Drive,
Herndon VA 20171
.:|||||||||:.:|||||||||:. Pager: 1-888-642-0551
c i s c o S y s t e m s Email: jconnary@cisco.com
------------------------------------------------------------------------
**Please read:http://www.groupstudy.com/list/posting.html
**Please read:http://www.groupstudy.com/list/posting.html
This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 10:30:33 GMT-3