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Load Balancing Rip version 2

I have a lab scenario, that is confusing me greatly. I can get per packet load-balancing working when I ping from R2 to interfaces in the 192.168.1.0/30. However, when I'm pinging from R3 , I can't packet load-balance to interfaces in 192.168.4.0/30. I also can't packet load-balance from R1 pinging to interfaces in 192.168.4.4/30. Am I doing something wrong? Thanks...

I have three routers: R1, R2, R3.

R1: Eth0 192.168.1.1/30 connected to R3 eth0

R1: Ser0 192.168.4.1/30 connect to R2 Ser0

R2: Ser0 192.168.4.2/30 connect to R1 Ser0

R2: Ser1 192.168.4.5/30 connect to R3 Ser0

R3: Eth0 192.168.1.2/30 connect to R1 eth0

R3: Ser0 192.168.4.6/30 connect to R2 Ser1

All of the routers run:

2500 Software (C2500-I-L), Version 12.2(29a), RELEASE SOFTWARE (fc1)

Configs for R1, R2, R3 are attached as a plain text file and listed below:

R1 config:

!

version 12.2

service timestamps debug uptime

service timestamps log uptime

service password-encryption

service udp-small-servers

service tcp-small-servers

!

hostname R1

!

!

ip subnet-zero

ip host R1 192.168.1.1

ip host R2 192.168.4.2

ip host R3 192.168.1.2

!

!

!

!

interface Ethernet0

ip address 192.168.1.1 255.255.255.252

no ip route-cache

no ip mroute-cache

!

interface Serial0

ip address 192.168.4.1 255.255.255.252

no ip route-cache

no ip mroute-cache

!

interface Serial1

no ip address

no ip mroute-cache

shutdown

!

interface Serial2

no ip address

no ip mroute-cache

shutdown

!

interface Serial3

no ip address

no ip mroute-cache

shutdown

!

interface BRI0

no ip address

encapsulation hdlc

no ip mroute-cache

shutdown

!

router rip

version 2

network 192.168.1.0

network 192.168.4.0

!

ip classless

no ip http server

!

!

line con 0

line aux 0

line vty 0 4

!

end

R2 config:

!

version 12.2

no service pad

service timestamps debug uptime

service timestamps log uptime

service password-encryption

!

hostname R2

!

!

ip subnet-zero

ip host R1 192.168.1.1

ip host R2 192.168.4.2

ip host R3 192.168.1.2

!

!

!

!

interface Ethernet0

shutdown

!

interface Serial0

ip address 192.168.4.2 255.255.255.252

no ip route-cache

no ip mroute-cache

clockrate 56000

!

interface Serial1

ip address 192.168.4.5 255.255.255.252

no ip route-cache

no ip mroute-cache

clockrate 56000

!

interface Serial2

no ip address

shutdown

!

interface Serial3

no ip address

shutdown

!

interface Serial4

no ip address

shutdown

!

interface Serial5

no ip address

shutdown

!

interface Serial6

no ip address

shutdown

!

interface Serial7

no ip address

shutdown

!

interface Serial8

no ip address

shutdown

!

interface Serial9

no ip address

shutdown

!

interface BRI0

no ip address

encapsulation hdlc

shutdown

!

router rip

version 2

network 192.168.4.0

!

ip classless

no ip http server

!

!

line con 0

line aux 0

line vty 0 4

!

end

R3 config:

!

version 12.2

service timestamps debug uptime

service timestamps log uptime

service password-encryption

!

hostname R3

!

!

ip subnet-zero

ip host R2 192.168.4.2

ip host R1 192.168.1.1

ip host R3 192.168.1.2

!

!

!

!

interface Ethernet0

ip address 192.168.1.2 255.255.255.252

no ip route-cache

no ip mroute-cache

!

interface Serial0

ip address 192.168.4.6 255.255.255.252

no ip route-cache

no ip mroute-cache

!

interface Serial1

no ip address

no ip mroute-cache

shutdown

!

interface BRI0

no ip address

encapsulation hdlc

no ip mroute-cache

shutdown

!

router rip

version 2

network 192.168.1.0

network 192.168.4.0

!

ip classless

no ip http server

!

!

line con 0

line aux 0

line vty 0 4

!

end

2 REPLIES
Purple

Re: Load Balancing Rip version 2

Can you post the output of 'sh ip route' from R1 and R3 ?

Paresh

New Member

Re: Load Balancing Rip version 2

I figured it out. When I configur "no auto-summary" on each router it behaves nicely with per packet load balancing. I guess I needed to get rid of the summarized routes listing /24 for my VLSMed 4.0 4.4 /30 networks.

Thanks

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