Conguring an OSPFv3 distribution list using a route map that uses a prex list
When you congure route redistribution into OSPFv3 using a route map that uses a prex list, the device supports both permit and deny
statements in the route map and permit statements only in the prex list. Therefore, the action to permit or deny is determined by the
route map, and the conditions for the action are contained in the prex list. The following shows an example conguration.
device(config)# route-map v64 deny 10
device(config-routemap v64)# match ipv6 next-hop prefix-list ospf-filter5
device(config-routemap v64)# route-map v64 deny 11
device(config-routemap v64)# match ipv6 address prefix-list ospf-filter2
device(config-routemap v64)# route-map v64 permit 12
device(config-routemap v64)# exit
device(config)# ipv6 prefix-list ospf-filter2 seq 15 permit 2001:DB8:2001:102::/64 ge 65 le 96
device(config)# ipv6 prefix-list ospf-filter5 seq 15 permit fe80::2e0:52ff:fe00:100/128
In this example the
prex lists, ospf-lter2 and ospf-lter5 , contain a range of IPv6 routes and one host route to be denied, and the route
map v64 denes the deny action.
NOTE
The default action rule for route-map is to deny all routes that are not explicitly permitted. If you congure a "deny" route map
but want to permit other routes that do not match the rule, congure an "empty" permit route map. For example.
device(config)# route-map abc deny 10
device(config-routemap abc)# match metric 20
device(config-routemap abc)# route-map abc permit 20
Without the last line in the above example, all routes would be denied.
Conguring default route origination
When the Brocade device is an OSPFv3 Autonomous System Boundary Router (ASBR), you can congure it to automatically generate a
default external route into an OSPFv3 routing domain. This feature is called "default route origination" or "default information origination."
By default, the Brocade device does not advertise the default route into the OSPFv3 domain. If you want the device to advertise the
OSPF default route, you must explicitly enable default route origination.
When you enable OSPFv3 default route origination, the device advertises a type 5 default route that is ooded throughout the AS
(except stub areas).
The device advertises the default route into OSPF even if OSPF route redistribution is not enabled, and even if the default route is
learned through an IBGP neighbor. The router will not, however, originate default if the active default route is learned from an OSPF
router in the same domain.
NOTE
The Brocade device does not advertise the OSPFv3 default route, regardless of other conguration parameters, unless you
explicitly enable default route origination.
If default route origination is enabled and you disable it, the default route originated by the device is ushed. Default routes generated by
other OSPFv3 routers are not aected. If you re-enable the feature, the feature takes eect immediately and thus does not require you to
reload the software.
For example, to create and advertise a default route with a metric of 2 and as a type 1 external route, enter the following command.
device(config-ospf6-router)# default-information-originate always metric 2 metric-type type1
Syntax: [no] default-information-originate [always] [metric value ] [ metric-type type]
Conguring OSPFv3
FastIron Ethernet Switch Layer 3 Routing
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