HP 3500YL - Manual (Page 248)

IP Routing Features
Configuring OSPF
connected, and OSPF routes into RIP routes.) The steps for configuring
external route redistribution to support ASBR operation include the
following:
1. Configure redistribution filters to exclude external routes that you do not
want redistributed in your OSPF domain.
2. Enable route redistribution.
3. Modify the default metric for redistribution (optional).
4. Modify the redistribution metric type (optional).
5. Change the administrative distance setting (optional).
N o t e Do not enable redistribution until you have used restrict to configure the
redistribution filters. Otherwise, your network might get overloaded with
routes that you did not intend to redistribute.
1. Configure Redistribution Filters.
Syntax: router ospf restrict < ip-addr/mask-length >
This command prevents distribution of the specified range of
external routes through an ASBR from sources external to the
OSPF domain.
Default: Allow all supported, external route sources.
Note: Use this command to block unwanted, external routes
before enabling route redistribution on the ASBR.
Example: To configure a routing switch operating as an ASBR to filter out
redistribution of static, connected, or RIP routes on network 10.0.0.0, enter
the following commands:
ProCurve(config)# router ospf restrict 10.0.0.0/8
N o t e In the default configuration, redistribution is permitted for all routes from
supported sources.
2. Enable Route Redistribution. This step enables ASBR operation on a
routing switch, and must be executed on each routing switch connected to
external routes you want to redistribute in your OSPF domain.
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