EIGRP on L3 3750G is not working

[thiagosct]

Hi All,

We have 2x 3750G L3 switches and I am trying to set them up to use  EIGRP but for some reason it’s not working, I created 2 routed ports on each switch and I want to route vlan10 traffic to vlan20 to S2. I also enable EIGRP as the routing protocol but I still cannot ping between VLAN 10 and VLAN20 ,  here are the configs for both switches. What am I doing wrong?   Any help would be much appreciated!!!

S1

Current configuration : 1943 bytes

!

version 12.2

no service pad

service timestamps debug uptime

service timestamps log uptime

no service password-encryption

!

hostname S1

!

no aaa new-model

switch 1 provision ws-c3750g-24ps

system mtu routing 1500

ip subnet-zero

ip routing

!

!

no file verify auto

spanning-tree mode pvst

spanning-tree extend system-id

!

interface GigabitEthernet2/0/23
description ROUTED_PORT23
no switchport
ip address 192.168.1.1 255.255.255.0
!
interface GigabitEthernet2/0/24
description ROUTED_PORT24
no switchport
ip address 192.168.2.1 255.255.255.0

vlan internal allocation policy ascending

!

interface Vlan10

ip address 192.168.10.1 255.255.255.0

!

router eigrp 10

redistribute connected

network 192.168.10.0

network 192.168.20.0

no auto-summary

!

ip default-gateway 192.168.1.1

ip classless

ip http server

!

!

control-plane

S2

Current configuration : 1820 bytes

!

version 12.2

no service pad

service timestamps debug uptime

service timestamps log uptime

no service password-encryption

!

hostname S2

!

!

no aaa new-model

switch 2 provision ws-c3750g-24ps

ip subnet-zero

ip routing

!

no file verify auto

spanning-tree mode pvst

spanning-tree extend system-id

interface GigabitEthernet2/0/23

description ROUTED_PORT23

no switchport

ip address 192.168.1.2 255.255.255.0

!

interface GigabitEthernet2/0/24

description ROUTED_PORT24

no switchport

ip address 192.168.2.2 255.255.255.0

!

interface Vlan20

ip address 192.168.20.1 255.255.255.0

!

router eigrp 10

redistribute connected

network 192.168.10.0

network 192.168.20.0

no auto-summary

!

ip default-gateway 192.168.1.1

ip classless

ip http server

ip classless

ip http server

!

control-plane

Thank you

[Roman Rodichev]

you need a network statement under EIGRP for the subnet used on the routed link between two switches

[thiagosct]

Hi Roman,

Thanks for the fast reply, I've done the following on both switches:

router eigrp 10

redistribute connected
passive-interface GigabitEthernet1/0/23
passive-interface GigabitEthernet1/0/24
network 192.168.10.0
network 192.168.20.0
network 192.168.1.0
network 192.168.2.0
no auto-summary

router eigrp 10
redistribute connected
passive-interface GigabitEthernet2/0/23
passive-interface GigabitEthernet2/0/24
network 192.168.10.0
network 192.168.20.0
network 192.168.1.0
network 192.168.2.0
no auto-summary

Still no luck, I can ping everything from both switches except the for vlan interfaces.

[Roman Rodichev · Accepted solution]

why did you set those interfaces as passive? your EIGRP neighborship is not coming up because of this. You want to remove those commands.

[thiagosct]

new adjancy is UP Thank you very much for you help!

passive interface command was a mistake, it will actually prevent hello packets and the EIGRP  network flow to neighbors

interesting but still cannot ping VLAN 10/20 interfaces

Regards,

[cadet alain]

Hi,

Can you post show ip route eigrp.

Regards.

Alain.

[thiagosct]

Hey Alain, everything is working now thanks!!

Regards,