Modifying Rules; Rule Criteria - Avaya G250 Administration

Note:
The fragment criteria is used for non-initial fragments only.
Note:
Use IP wildcards to specify a range of source or destination IP addresses. The zero bits in the
wildcard correspond to bits in the IP address that remain fixed. The one bits in the wildcard
correspond to bits in the IP address that can vary. Note that this is the opposite of how bits are
used in a subnet mask.
Note:
When you use destination and source ports in a PBR rule, policy-based routing
Note:
does not catch fragments.
Note:
It is recommended to leave a gap between rule numbers, in order to leave room
Note:
for inserting additional rules at a later time. For example, ip-rule 10, ip-rule 20,
ip-rule 30.

Modifying rules

To modify a policy-based routing rule, you must enter the context of the rule and redefine the

rule criteria.

1. Enter the context of the PBR list to which the rule belongs.
2. Type the command ip-rule, followed by the number of the rule you want to modify. For
example, to create rule 1, type ip-rule 1.
To view the rules that belong to a PBR list, enter the list's context and type ip show-rule.
Rule criteria
The rule criteria for PBR rules are largely the same as the rule criteria for other policy list rules.
Refer to Rule criteria
Unlike other policy lists, PBR lists do not use composite operations. Thus, there is no
operation command in the context of a PBR rule. Instead, PBR lists use next hop lists. For an
explanation of next hop lists, see
Use the next-hop list command, followed by the list number of a next hop list, to specify a
next hop list for the G250/G350 to apply to packets that match the rule. You can specify
Destination Based Routing instead of a next hop list, in which case the G250/G350 applies
destination-based routing to a packet when the packet matches the rule.
If the next hop list specified in the rule does not exist, the G250/G350 applies destination-based
routing to packets that match the rule.
on page 540.
Next hop lists on page 560.
Issue 3 February 2007
PBR rules
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