From: Brad Hedlund (BHedlund@xxxxxxxxxxxxxxxxxxx)
Date: Tue Jan 25 2000 - 15:32:04 GMT-3
Mike,
In your example 10.2.1.0/24 is not the classful boundry for 10.0.0.0
>From my experience, this would automatically create a static on R2. This
would accomplish
connectivity, but it would be in violation of a 'no static route' rule.
The default network command must point to a non-subnetted route to prevent a
static route from being created.
-Brad
-----Original Message-----
From: Michael Bausenwein [mailto:mikeb55@home.com]
Sent: Tuesday, January 25, 2000 12:01 PM
To: Ben Rife; ccielab@groupstudy.com
Subject: Re: IGRP Issues
the passive interface command just means that it will not send out any
advertisements out that specific interface. If you want an interface to not
show ip in the routing table you could do a distribute list out from R2
You can try to redist it, but because the network you wish to redist has a
smaller subnet mask than the igrp domain, the igrp process will not see it
as a vald route. Whe using IGRP you can use a default network command on
R3, and advertise it with igrp. There are a couple of gotchas here
though. First you must point to a network other than the classful network
you are running. For example your default network should be something
other than 129.45.0.0. Also the router that you configure it on must be
able to reach the network you are setting as a default. The network you
specify must be on a classful boundry. ie if R3 sees an entry in its routing
table 10.2.1.0/24, you could use the ip defaul network 10.0.0.0 command.
The last thing you must do is to advertise the 10.0.0.0 net from R3's igrp
process with a netwokr 10.0.0.0 command. pages 755 through 758 in Routing
TCP/IP Vol 1 by Jeff Doyle has an example.
Hope this helps......
Michael Bausenwein
Network Engineer
Greenwich Technology Parteners
CCNP MCSE CNE
email:mbausenwein@greenwichtech.com
<mailto:email:mbausenwein@greenwichtech.com>
2 days to go, if newark airport isn't closed due to snow.......
----- Original Message -----
From: Ben Rife <mailto:brife@bignet.net>
To: ccielab@groupstudy.com <mailto:ccielab@groupstudy.com>
Sent: Monday, January 24, 2000 11:17 PM
Subject: IGRP Issues
Hi Everyone,
1st Question:
I have two routers R2 and R3
R2----------R3
R2 has 3 interfaces:
Lo0: 129.45.80.72 /30
E0 : 129.45.80.144 /29
S0 : 129.45.80.4 /30
router igrp 100
net 129.45.0.0
passive-interface lo 0
R3 has 3 interfaces:
S0 : 129.45.80.4 /30
E0 : 129.45.80.48 /30
S1 : 129.45.80.128 /29
router igrp 100
net 129.45.0.0
passive-interface e0
passive-interface s1
On R3, when I "sh ip route", I see R2's loopback in my table. Why? I thought
by "passive-int lo 0", I wouldn't see it?
2nd Question:
If I run OSPF on R3's S1 interface, will I be able to redistribute that into
IGRP since it is a /29 ?
Please explain, it's been a long day and I'm not thinking straight.
Thanks,
Ben
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