Arris C4 - PBR Script Setup

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Chapter 16: Dynamic Routing Protocols

STANDARD Revision 1.0 C4® CMTS Release 8.3 User Guide

1. Create an extended ACL 155 to match packets with destination IP address in the 11.0.0.0/8 or 14.0.0.0/8 subnets and

the precedence value set as routine:

configure access-list 155 permit ip any 11.0.0.0 0.255.255.255 precedence routine

configure access-list 155 permit ip any 14.0.0.0 0.255.255.255 precedence routine

2. Configure route map named testroutemap and sequence number 10 to match ACL 155:

configure route-map-policy testroutemap permit 10 match ip address 155

3. Set the next hop address to 67.59.234.169:

configure route-map-policy testroutemap permit 10 set ip next-hop 67.59.234.169

4. Apply the route map named testroutemap to interface cable-mac 1:

configure interface cable-mac 1 ip policy route-map-policy testroutemap

5. Run the following show commands to confirm your configuration:

show access-list

show ip interface cable-mac 1

show route-map-policy

show ip policy

PBR Script Setup – IP Next-Hop

The following script is offered as an example of an implementation of PBR. PBR can be applied to one or more C4/c CMTS

interfaces. The two chosen in the following procedure are meant as examples.

1. Create standard access lists 20, 30 & 40:

configure access-list 20 permit 10.10.20.0 0.0.0.255

configure access-list 30 permit 10.10.30.0 0.0.0.255

configure access-list 40 permit 10.10.40.0 0.0.0.255

2. Configure route map named routemap1 and sequence number 10 to match ACL 20; set the next-hop to 10.69.1.1; and

set the backup next-hop to 10.69.2.1:

configure route-map-policy routemap1 permit 10 match ip address 20

configure route-map-policy routemap1 permit 10 set ip next-hop 10.69.1.1

configure route-map-policy routemap1 permit 10 set ip backup-next-hop 10.69.2.1

3. Configure routemap1, sequence number 20, to match ACL 30; set the next-hop to 10.69.3.1; and set the backup next-

hop to 10.69.4.1; and set the ToS to normal:

configure route-map-policy routemap1 permit 20 match ip address 30

configure route-map-policy routemap1 permit 20 set ip next-hop 10.69.3.1

configure route-map-policy routemap1 permit 20 set ip backup-next-hop 10.69.4.1

configure route-map-policy routemap1 permit 20 set ip tos normal

4. Configure routemap1, sequence number 30, to drop all packets:

Arris C4 - PBR Script Setup - IP Next-Hop