From: Todd Spencer (spencertm@xxxxxxxxx)
Date: Sat May 18 2002 - 20:53:56 GMT-3
I am trying to do the FatKid 502 Expert Redistribution
Lab, and I don't understand the solution provided. I
will try to briefly explain.
The problem has to do with the classic VLSM to FLSM
problem (IGRP/OSPF). The lab requires that OSPF area
4 be configured with a /22 subnet, and the IGRP domain
be configured with a /24. OSPF area 4 is using the
following subnet 135.1.20.x/22 and the IGRP domain is
using 135.1.1.x/24. The OSPF configuration below is
taken from the solution:
router ospf 1
summary-address 135.1.20.0 255.255.255.0
redistribute igrp 1 subnets
network 135.1.14.0 0.0.0.255 area 4
network 135.1.20.0 0.0.3.255 area 4
I am unsure what the summary-address command is doing
in this configuration. How is it able to summarize a
/22 into a /24? How is the /22 subnet getting into
the IGRP domain? If anyone has done this lab and can
provide assistance, it would be greatly appreciated.
-Todd
This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 10:59:00 GMT-3