All Routers are configured using EIGRP
Actual Path from PC2 to Reach S1 is R1->R2->R3->S1 Using T1 (1.54m) Line Serial Cable
Change this like R1->R4->R3->S1 Using 64 kbps Only for PC2
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Actual Configuration
R1#show ip eigrp 90 topology 10.1.3.0/24
IP-EIGRP (AS 90): Topology entry for 10.1.3.0/24
State is Passive, Query origin flag is 1, 1 Successor(s), FD is 2221056
Routing Descriptor Blocks:
10.1.12.2 (Serial1/0), from 10.1.12.2, Send flag is 0x0
Composite metric is (2221056/307200), Route is Internal
Vector metric:
Minimum bandwidth is 1544 Kbit
Total delay is 22000 microseconds
Reliability is 255/255
Load is 1/255
Minimum MTU is 1500
Hop count is 2
10.1.14.4 (Serial1/1), from 10.1.14.4, Send flag is 0x0
Composite metric is (40563200/307200), Route is Internal
Vector metric:
Minimum bandwidth is 64 Kbit
Total delay is 22000 microseconds
Reliability is 255/255
Load is 1/255
Minimum MTU is 1500
Hop count is 2
PC2#traceroute 10.1.3.1
1 10.1.1.254 1032 msec 16 msec 36 msec
2 10.1.12.2 36 msec 56 msec 92 msec <---
3 10.1.234.3 80 msec 92 msec 92 msec
4 10.1.3.1 124 msec
Start Configure
R1#conf terminal
R1(config)#access-list 120 permit ip host 10.1.1.2 host 10.1.3.1
R1(config)#route-map PC2-TO-S1-LOW-BANDWIDTH permit
R1(config-route-map)#match ip address 120
R1(config-route-map)#set ip next-hop 10.1.14.4
R1(config-route-map)#exit
R1(config)#interface fastEthernet 0/0
R1(config-if)#ip policy route-map PC2-TO-S1-LOW-BANDWIDTH
R1(config-if)#end
Verify Configuration On R1
R1#show ip policy
Interface Route map
Fa0/0 PC2-TO-S1-LOW-BANDWIDTH
R1#show route-map PC2-TO-S1-LOW-BANDWIDTH
route-map PC2-TO-S1-LOW-BANDWIDTH, permit, sequence 10
Match clauses:
ip address (access-lists): 120
Set clauses:
ip next-hop 10.1.14.4
Policy routing matches: 34 packets, 2640 bytes
R1#debug ip policy
Policy routing debugging is on
Match
*Mar 1 01:16:42.931: IP: s=10.1.1.2 (FastEthernet0/0), d=10.1.3.1, len 100, FIB policy match
*Mar 1 01:16:42.931: IP: s=10.1.1.2 (FastEthernet0/0), d=10.1.3.1, g=10.1.14.4, len 100, FIB policy routed
*Mar 1 01:14:29.119: IP: s=10.1.1.1 (FastEthernet0/0), d=10.1.3.1, len 100, FIB policy rejected(no match) - normal forwarding
PC2#traceroute 10.1.3.1
1 10.1.1.254 72 msec 16 msec 44 msec
2 10.1.14.4 64 msec 124 msec 92 msec <--- (R4)
3 10.1.234.3 92 msec 108 msec 152 msec
4 10.1.3.1 104 msec * 144 msec
PC2#traceroute 10.1.3.254 (Other Host Works The same way)
1 10.1.1.254 1004 msec 44 msec 48 msec
2 10.1.12.2 84 msec 72 msec 44 msec <--- (R2)
3 10.1.234.3 112 msec * 72 msec
Verify Trafic From PC1
PC1#traceroute 10.1.3.1
1 10.1.1.254 12 msec 12 msec 8 msec
2 10.1.12.2 68 msec 32 msec 60 msec
3 10.1.234.3 52 msec 60 msec 48 msec
4 10.1.3.1 80 msec * 56 msec
R1#show access-lists 120
Extended IP access list 120
10 permit ip host 10.1.1.2 host 10.1.3.1 (24 matches)
It Does Not Change Successor
R1#show ip eigrp 90 topology 10.1.3.0/24
IP-EIGRP (AS 90): Topology entry for 10.1.3.0/24
State is Passive, Query origin flag is 1, 1 Successor(s), FD is 2221056
Routing Descriptor Blocks:
10.1.12.2 (Serial1/0), from 10.1.12.2, Send flag is 0x0
Composite metric is (2221056/307200), Route is Internal
Vector metric:
Minimum bandwidth is 1544 Kbit
Total delay is 22000 microseconds
Reliability is 255/255
Load is 1/255
Minimum MTU is 1500
Hop count is 2
Done !
P.S
If Link Between R1 and R4 Goes Down R1 Use "Normal Forwarding"
*Mar 1 01:26:54.351: IP: s=10.1.1.2 (FastEthernet0/0), d=10.1.3.1, len 100, FIB policy rejected - normal forwarding
*Mar 1 01:26:54.411: IP: s=10.1.1.2 (FastEthernet0/0), d=10.1.3.1, len 100, FIB policy match
Applyng PBR to Locally Created Packets
Configure Local PBR
R1(config)#ip local policy route-map "NAME"
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