I was looking for a way to route traffic such as bittorrent detected by the PDLMs on the router to another gateway to off-load that traffic from our primary ISP but not block or throttle it.
i was hoping there was a built-in mechanism to do so, and since the ports are dynamic, it makes it near impossible to use a nat statement do perform the same tasks.
any help would be much appreciated.
You can do it using match policy-list option in route-map. Following is my lab test
class-map match-any ICMP
match protocol icmp
match ip policy-list For-PBR
set ip next-hop 220.127.116.11
ip policy route-map PBR-NBAR
route-map PBR-NBAR, permit, sequence 10
IP Policy lists:
ip next-hop 18.104.22.168
Policy routing matches: 103 packets, 11742 bytes
Don't forget to rate.
Command not listed under match ip. what versions are supported?
CPTNYCRT01(config-route-map)#match ip ?
address Match address of route or match packet
next-hop Match next-hop address of route
redistribution-source route redistribution source (EIGRP only)
route-source Match advertising source address of route
CPTNYCRT01(config-route-map)#do sh ver
Cisco IOS Software, 2800 Software (C2800NM-ADVIPSERVICESK9-M), Version 15.1(4)M4, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2012 by Cisco Systems, Inc.
Compiled Tue 20-Mar-12 18:13 by prod_rel_team
ROM: System Bootstrap, Version 12.3(8r)T7, RELEASE SOFTWARE (fc1)
CPTNYCRT01 uptime is 14 weeks, 2 days, 20 hours, 56 minutes
System returned to ROM by reload at 18:00:00 Eastern Thu Oct 31 2013
System restarted at 18:01:54 Eastern Thu Oct 31 2013
System image file is "flash:c2800nm-advipservicesk9-mz.151-4.M4.bin"
Last reload type: Normal Reload
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Cisco 2821 (revision 3.0) with 1034240K/14336K bytes of memory.
Processor board ID FHK0847F1PQ
2 Gigabit Ethernet interfaces
1 ATM interface
1 Channelized T1/PRI port
1 Virtual Private Network (VPN) Module
DRAM configuration is 64 bits wide with parity enabled.
239K bytes of non-volatile configuration memory.
126976K bytes of ATA CompactFlash (Read/Write)
Device# PID SN
*0 CISCO2821 FHK0847F1PQ
Configuration register is 0x2102
I am afraid you are not correct. You are confusing a policy-map with an ip policy-list - these two are different and unrelated constructs. Your example appears to work because the route-map refers to a non-existent ip policy-list and therefore produces a match (it's like referring to a non-existent ACL), but because of this, it applies to all traffic, not just to the ICMP packets.
Unfortunately, a route-map used to drive PBR is unable to directly refer to a class-map or to a qos-group value. The only solution I was able to create was to actually mark ingress packets with a non-zero DSCP value, and then base the PBR on the DSCP value, e.g.:
class-map match-all TELNET
match protocol telnet
set dscp af13
ip access-list extended AF13
permit ip any any dscp af13
route-map PBR permit 10
match ip address AF13
set ip next-hop 10.0.23.3
ip address 10.1.12.2 255.255.255.0
ip policy route-map PBR
service-policy input fa0/1-in
Ingress traffic on Fa0/1 is first inspected by the fa0/1-in policy-map that identifies the Telnet traffic, and marks the packets with DSCP value of AF13. Afterwards, the PBR looks for all AF13-marked packets, and PBRs them to a different next hop. On ingress, QoS marking is performed before PBR.
It is admittedly a hack...
You are right, I mistook the policy-list for a policy-map.
R2(config-route-map)#match policy-list ?
WORD IP Policy map name
Seems like yours is the only way to configure it. Thanks for clearing that.