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ospf6d: always generate default route for stubs

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In RFC 2328 OSPF Version 2, Section 12.4.3.1 "Originating summary-LSAs
into stub areas" mentions that the stub areas should not import external
routes and instead should generate a 'default summary-LSA' set to
default destination.

> In a stub area, instead of importing external routes
> each area border router originates a "default summary-
> LSA" into the area. The Link State ID for the default
> summary-LSA is set to DefaultDestination, and the metric
> set to the (per-area) configurable parameter
> StubDefaultCost.  Note that StubDefaultCost need not be
> configured identically in all of the stub area's area
> border routers.

Signed-off-by: Rafael Zalamena <rzalamena@opensourcerouting.org>
This commit is contained in:
Rafael Zalamena 2021-07-20 09:43:03 -03:00
parent fb8e437bcd
commit 80d1eb49b1
1 changed files with 0 additions and 13 deletions
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13
ospf6d/ospf6_abr.c
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@ -710,24 +710,11 @@ void ospf6_abr_defaults_to_stub(struct ospf6 *o)
struct listnode *node, *nnode;
struct ospf6_area *oa;
struct ospf6_route *def, *route;
struct ospf6_redist *red;
int type = DEFAULT_ROUTE;
struct prefix_ipv6 p = {};
if (!o->backbone)
return;
red = ospf6_redist_lookup(o, type, 0);
if (!red)
return;
p.family = AF_INET6;
p.prefixlen = 0;
route = ospf6_route_lookup((struct prefix *)&p, o->external_table);
if (!route)
return;
def = ospf6_route_create();
def->type = OSPF6_DEST_TYPE_NETWORK;
def->prefix.family = AF_INET6;