Ipv6 Urpf Operation - HPE FlexNetwork 10500 Series Security Configuration Manual

IPv6 uRPF operation

Figure 150 shows how IPv6 uRPF works.
Figure 150 IPv6 uRPF work flow
Checks the received
packet
Multicast destination
address?
No
Uses source address to
look up the IPv6 FIB table
Matching IPv6 FIB
entry found?
Yes
InLoop interface
found?
No
Do interfaces match?
Yes
Default route found?
No
End
1. IPv6 uRPF checks whether the received packet carries a multicast destination address:
If yes, IPv6 uRPF permits the packet.

If no, IPv6 uRPF proceeds to step 2.

2. IPv6 uRPF checks whether the source address matches a unicast route:
If yes, IPv6 uRPF proceeds to step 3.

Yes
No
Yes
No
Loose check?
Yes
Yes
Default route
allowed?
Yes
No
InLoop receiving
interface?
Yes
No
No
Discards the packet
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