Hello Everyone,

the interface f0/0 of R1 and f0/1 of R3 were assigned to vrf vpn13. after all ospf sessions were established i found that R1 could recieve the inter area routes from another area well, but r3 couldn't. the show ospf database command presents that the all LSAs in OSPF DATABASE of R1 were set with Routing Bit, although the inter-area LSA in R3 were not. all the LSA without Routing Bit couldn't be put into routing table of r3. Under which circumstance the Routing Bit should be set on LSA? Is the Routing Bit not set on the LSA which should be sent toward a vrf interface locating in a None-Zero Area?
besides i'm also aware that r3 recieved a route from r2, however it's not present in r3's ospf database
R3#sh ip os da
OSPF Router with ID (3.3.3.3) (Process ID 13)
Router Link States (Area 1)
Link ID ADV Router Age Seq# Checksum Link count
2.2.2.2 2.2.2.2 310 0x80000003 0x001268 2
3.3.3.3 3.3.3.3 309 0x80000003 0x005766 2
Net Link States (Area 1)
Link ID ADV Router Age Seq# Checksum
23.0.0.3 3.3.3.3 309 0x80000001 0x00C53A
Summary Net Link States (Area 1)
Link ID ADV Router Age Seq# Checksum
1.1.1.1 2.2.2.2 306 0x80000001 0x008D98
2.2.2.2 2.2.2.2 506 0x80000001 0x00FA31
12.0.0.0 2.2.2.2 345 0x80000001 0x00150A
R3#sh ip ro vrf vpn13 22.22.22.22
Routing entry for 22.22.22.22/32
Known via "ospf 13", distance 110, metric 11, type intra area
Last update from 23.0.0.2 on FastEthernet0/1, 00:06:12 ago
Routing Descriptor Blocks:
* 23.0.0.2, from 2.2.2.2, 00:06:12 ago, via FastEthernet0/1
Route metric is 11, traffic share count is 1
R3#
thank you very much for your help in advance.