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szuwar
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Joined: Mon Aug 08, 2011 11:35 am

router does not forward vrf traffic when local router adres overlaps

Thu Jul 07, 2022 4:21 pm

Hi

I have separate OSPF instance with designated area and routing table. The problem is that if I send packet from addresses 192.168.250.4/32 or 192.168.168.250.5/32 from device attached to vlan_test, and there is 192.168.250.5/30 address on VRF router ( lets say on dummy bridge or any other interface that is not part of VRF ) that traffic is not forwarded in VRF routing table. When I disable 192.168.250.5/30 on VRF router, everything works fine.
VRF router
 /routing ospf instance print 
 name="test" router-id=192.168.254.38 distribute-default=never redistribute-connected=no redistribute-static=no redistribute-rip=no redistribute-bgp=no redistribute-other-ospf=no metric-default=1 metric-connected=20 metric-static=20 metric-rip=20 metric-bgp=auto metric-other-ospf=auto  in-filter=ospf-in out-filter=ospf-out routing-table=test
 
 /routing ospf area print detail
name="test" instance=test type=default area-id=5.5.5.5

/ip route vrf print 
routing-mark=test interfaces=vpls-test,vlan_test
I have assumed prefixes in VRF routing table and default routing table can overlap.
 
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mrz
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Re: router does not forward vrf traffic when local router adres overlaps

Thu Jul 07, 2022 4:26 pm

This is a limitation of ROSv6 VRF implementation.
 
szuwar
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Posts: 14
Joined: Mon Aug 08, 2011 11:35 am

Re: router does not forward vrf traffic when local router adres overlaps

Thu Jul 07, 2022 4:28 pm

so the solution will be upgrade to 7.X?
 
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mrz
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Re: router does not forward vrf traffic when local router adres overlaps

Thu Jul 07, 2022 4:33 pm

Yes, v7 has completely different VRF implementation.

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