> > > I came up with summary-address 172.16.10.0 255.255.255.224
The summary-address command is only used on OSPF ASBRs. Use the area
<area-id> range <address> <supernet-mask> command to summarise routes on an
OSPF ABR.
The succinct difference lies in the type of LSA generated by these two
commands. The ABR generates Summary LSAs (Type 3/4), whereas the ASBR
generates Autonomous System External LSAs (Type 5). The summary-address
command, therefore, will not work correctly on an ABR. You must use the area
<area-id> range command to enable summarisation of inter-area routes.
--
Edward Solomon
CCNA, CCSI
Senior I/T Specialist
Networking Solutions
IBM Canada Ltd. - Learning Services
Tel.: (905) 316-3241 Fax: (905) 316-3101
E-mail: [EMAIL PROTECTED]
Internet: http://www.can.ibm.com/services/learning/net_internet.html
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