Ipv6 Urpf Operation - HP VSR1000 Security Configuration Manual

default, IPv6 uRPF discards packets that can only match a default route. Typically, you do not need to
configure the allow-default-route keyword on a PE device because it has no default route pointing to the
CE device. If you enable IPv6 uRPF on a CE that has a default route pointing to the PE, select the
allow-default-route keyword.
IPv6 ACLs—To identify specific packets as valid packets, you can use an IPv6 ACL to match these packets.
Even if the packets do not pass IPv6 uRPF check, they are still forwarded.

IPv6 uRPF operation

IPv6 uRPF does not check multicast packets.
Figure 99 shows how IPv6 uRPF works.
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