
Configuring Traffic Filters and Protocol Prioritization
3-8
IP Actions
In addition to the Accept, Drop, and Log actions common to all the protocols, IP
supports the following actions:
• Forward to Next Hop
Specifies that any frame that matches the filter will be forwarded to the next-
hop router. You must specify the IP address of the next-hop router. If the next-
hop router is not reachable, any packets matching the filter will be forwarded
normally unless you also specify Drop If Next Hop Is Unreachable.
If you specify 255.255.255.255 as the Next Hop, then any frame that matches
this filter will be forwarded normally.
• Drop If Next Hop Is Unreachable
This action is valid only when Forward to Next Hop is in use. Specifies that if
the next-hop address specified is unreachable, the frame is dropped.
• Forward to IP Address
Specifies that any frame that matches the filter will be forwarded to a single
address in a list of specified IP addresses. The destination address of the
original packet changes to the specified IP address.
• Forward to Next Hop Interfaces
Specifies that any frame that matches the filter will be duplicated and
forwarded to a group of next-hop interfaces based on a list of IP addresses you
specify. If none of the next-hop interfaces is up, any packets matching the
filter will be forwarded to the default destination for the packet destination
address (unless you also specify Drop If Next Hop Is Unreachable).
Note: When specifying IP user-defined criteria, use 8-bit lengths whenever
possible. User-defined IP traffic filters one bit long work only when aligned on
a byte (word) boundary. Lengths from 2 to 7 bits do not work.
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