Inter-vlan routing problems

[Fabio Francisco]

Hi all,

I setting up a new network for my company. It's a small network for 70 people.

For some reason inter-vlan routing is not behaving correctly. sometimes you can ping devices in other subnets other times you cannot. I checked memory, CPU, TCAM and they all seems all right.

I wonder if I made a mistake in the config. Please see below

aaa session-id common
system mtu routing 1500
ip subnet-zero
ip routing
no ip domain-lookup
ip domain-name xxxxxxx.com.au
!
ip dhcp snooping
!
!
!
no file verify auto
!
spanning-tree mode rapid-pvst
spanning-tree extend system-id
spanning-tree vlan 1,40,50,60 priority 24576
!
vlan internal allocation policy ascending
!
interface Loopback1
ip address 1.1.1.1 255.255.255.255
!
interface GigabitEthernet0/1
!
interface GigabitEthernet0/2
!
interface GigabitEthernet0/3
!
interface GigabitEthernet0/4
!
interface GigabitEthernet0/5
!
interface GigabitEthernet0/6
!
interface GigabitEthernet0/7
!
interface GigabitEthernet0/8
!
interface GigabitEthernet0/9
!
interface GigabitEthernet0/10
!
interface GigabitEthernet0/11
!
interface GigabitEthernet0/12
!
interface GigabitEthernet0/13
!
interface GigabitEthernet0/14
!
interface GigabitEthernet0/15
!
interface GigabitEthernet0/16
!
interface GigabitEthernet0/17
!
interface GigabitEthernet0/18
!
interface GigabitEthernet0/19
!
interface GigabitEthernet0/20
!
interface GigabitEthernet0/21
!
interface GigabitEthernet0/22
!
interface GigabitEthernet0/23
!
interface GigabitEthernet0/24
!
interface GigabitEthernet0/25
!
interface GigabitEthernet0/26
!
interface GigabitEthernet0/27
!
interface GigabitEthernet0/28
!
interface Vlan1
ip address 172.16.1.31 255.255.255.0
ip helper-address 172.16.1.250
!
interface Vlan40
ip address 172.16.40.1 255.255.255.0
ip helper-address 172.16.1.250
ip helper-address 172.16.1.251
!
interface Vlan50
ip address 172.16.50.1 255.255.255.0
!
interface Vlan60
ip address 172.16.60.1 255.255.255.0
ip helper-address 172.16.1.251
ip helper-address 172.16.1.250
!
router eigrp 1
network 172.16.1.0 0.0.0.255
network 172.16.40.0 0.0.0.255
network 172.16.60.0 0.0.0.255
auto-summary
!
ip classless
ip route 0.0.0.0 0.0.0.0 172.16.1.42
ip http server

Any help would be very appreciated.

Thanks,

Fabio

[Fabio Francisco]

Hi All,

I managed to get inter-vlan routing working. I rebooted all switches and I guess whatever was playing up got fixed.

Basically this is a new network that I'm building from scratch for our new office.

Thank you all for your help.

Cheers,

Fabio

[Richard Burts · Accepted solution]

Fabio

I am glad that you got it working. I guess that this demonstrates that sometimes, especially with very strange problems, a reboot is a way to fix a problem and get things working.

Thanks for posting back to the forum indicating that you got it to work and what you did to get it to work. It makes the forum more useful when people can read about a problem and can also read what was done that resolved the problem.

HTH

Rick

[tubjoan]

Hi , 
I am facing the same issue while working on toituremascouche.ca and I tried to resolve it using the method you suggested, but it didn’t work. Could you please help me fix it so I can continue with my work? Thank you