Administrator Guide
Applied interfaces:
None
Multiple rules can be applied to a single redirect-list. The rules are applied in ascending order, starting with the rule that has the lowest
sequence number in a redirect-list displays the correct method for applying multiple rules to one list.
Creating multiple rules for a redirect-list:
Dell(conf)#ip redirect-list test
Dell(conf-redirect-list)#seq 10 redirect 10.1.1.2 ip 20.1.1.0/24 any
Dell(conf-redirect-list)#seq 15 redirect 10.1.1.3 ip 20.1.1.0/25 any
Dell(conf-redirect-list)#seq 20 redirect 10.1.1.3 ip 20.1.1.128/24 any
Dell(conf-redirect-list)#show config
!
ip redirect-list test
seq 10 redirect 10.1.1.2 ip 20.1.1.0/24 any
seq 15 redirect 10.1.1.3 ip 20.1.1.0/25 any
seq 20 redirect 10.1.1.3 ip 20.1.1.0/24 any
Dell(conf-redirect-list)#
NOTE: Starting in release 9.4(0.0), Dell Networking OS supports the use of multiple recursive routes with the same source-
address and destination-address combination in a redirect policy on an router.
A recursive route is a route for which the immediate next-hop address is learned dynamically through a routing protocol and acquired
through a route lookup in the routing table. The user can congure multiple recursive routes in a redirect list by entering multiple seq
redirect statements with the same source and destination address and specify a dierent next-hop IP address. In this way, the recursive
routes are used as dierent forwarding routes for dynamic failover. If the primary path goes down and the recursive route is removed from
the routing table, the
seq redirect statement is ignored and the next statement in the list with a dierent route is used.
PBR Exceptions (Permit)
Use the command permit to create an exception to a redirect list. Exceptions are used when a forwarding decision should be based on the
routing table rather than a routing policy.
Dell Networking OS assigns the rst available sequence number to a rule congured without a sequence number and inserts the rule into
the PBR CAM region next to the existing entries. Since the order of rules is important, ensure that you congure any necessary sequence
numbers.
The permit statement is never applied because the redirect list covers all source and destination IP addresses.
Ineective PBR Exception due to Low Sequence Number
ip redirect-list rcl0
seq 5 redirect 2.2.2.2 ip any any
seq 10 permit ip host 3.3.3.3 any
To ensure that the permit statement or PBR exception is eective, use a lower sequence number, as shown below:
ip redirect-list rcl0
seq 10 permit ip host 3.3.3.3 any
seq 15 redirect 2.2.2.2 ip any any
Apply a Redirect-list to an Interface using a Redirect-group
IP redirect lists are supported on physical interfaces as well as VLAN and port-channel interfaces.
NOTE
: When you apply a redirect-list on a port-channel, when trac is redirected to the next hop and the destination port-
channel is shut down, the trac is dropped. However, on the S-Series, the trac redirected to the destination port-channel is
sometimes switched.
588 Policy-based Routing (PBR)