3Com MSR 50 Series, Configuration Manual

Page: 733 / 2443

Configuring IPv6 Unicast Policy Routing 733
n
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If a policy node has neither if-match nor apply clauses configured, all packets
can pass it and will not match against any other node. The statistics of IPv6
unicast policy routing will not be changed, though.
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If a policy node has if-match clauses but has no apply clauses configured, all
packets will match against these if-match clauses, while no apply clauses are
applicable to matched packets. The matched packets will not go to the next
node for a match. The statistics of IPv6 unicast policy routing will not be
changed, though.
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If a policy node has no if-match but has apply clauses configured, all packets
can pass it, then are permitted or denied if the
permit or deny keyword is
specified. They will not match against any other node. In this case, the statistics
of IPv6 unicast policy routing will be changed.
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If a non existent ACL is referenced, the ACL based match rule will not take
effect.
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If a local Ethernet interface, sub Ethernet interface or a Virtual-Template
interface is specified as the outgoing interface, packets can be forwarded
through the interface but the communication will fail, since the interface is a
broadcast interface. Therefore, you need to specify a next hop.
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If the match mode of a policy node is deny , no apply clauses will be executed.
Packets that passed the match criteria are routed through the routing table, so
neither debug information nor statistics for the denied packets will be
available.
Enabling IPv6 System
Policy Routing
IPv6 system policy routing is used to route packets generated by the local device.
Only one policy can be referenced when system policy routing is enabled.
To do... Use the command... Remarks
Enter system view system-view -
Create a policy or policy node
and enter policy view ipv6 policy-based-route
policy-name [ deny | permit ]
node sequence-num
Required
Not created by default.
Define an IPv6 packet length
match rule if-match packet-length
min-len max-len
Optional
Define an IPv6 ACL match rule if-match acl6 acl6-number Optional
Set a precedence for
permitted IPv6 packets apply ipv6-precedence
{ type | value }
Optional
Set an outgoing interface for
the permitted IPv6 packets apply output-interface
interface-type
interface-number
Optional
Set a next hop for the
permitted IPv6 packets apply ipv6-address
next-hop
ipv6-address
Optional
Set a default outgoing
interface for the permitted
IPv6 packets apply default
output-interface
interface-type
interface-number
Optional
Set a default next hop for the
permitted IPv6 packets apply ipv6-address default
next-hop
ipv6-address
Optional
Enable destination based
forwarding for IPv6 packets apply
destination-based-forwardi
ng Optional