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Can't Ping Vlan interfaces from Switch

umamon
Level 1
Level 1

Can someone assist a Newbie.

I have a 5500 with an RSM, created vlan interface, it's up but I can't ping from the Switch.

10 Replies 10

Richard Burts
Hall of Fame
Hall of Fame

We need more information to help solve your problem.

- how is the vlan interface configured - what vlan number, what IP address?

- how is the sc interface of the switch configured - what vlan, what IP address?

- what are you trying to ping?

HTH

Rick

I'm trying to ping Vlans 150 and 500. But I can only ping Vlan 1. Here's what I have configured:

RSM:

interface Vlan1

ip address 152.34.1.7 255.255.255.0

no ip mroute-cache

!

interface Vlan150

ip address 192.168.150.2 255.255.255.0

standby 150 ip 192.168.150.1

standby 150 priority 90

standby 150 preempt

!

interface Vlan500

ip address 150.50.50.5 255.255.255.252

Switch:

cat5-1> (enable) sh int

sl0: flags=51

slip 0.0.0.0 dest 0.0.0.0

sc0: flags=63

vlan 1 inet 152.34.1.31 netmask 255.255.255.0 broadcast 152.34.1.255

In addition, I have a second RSM in the same switch. I can ping and telnet to the neighbor vlan interface on the second RSM with no problem. here's config for the second RSM:

interface Vlan1

ip address 152.34.1.17 255.255.255.0

no ip route-cache

no ip mroute-cache

!

interface Vlan150

ip address 192.168.150.3 255.255.255.0

standby 150 ip 192.168.150.1

standby 150 priority 80

standby 150 preempt

!

The config looks reasonable so far. What are you trying to ping? Are there switch ports configured in vlan 150 and 500? And are there devices connected to those switch ports configured with addresses in the proper subnet?

HTH

Rick

Trying to ping from the switch interface 192.168.150.2 and 150.50.50.5.

There are ports configured on the switch for vlan 500, which connects to another switch, can see the neigbors, and the mac. Can even telnet to the RSM that it connects to on the Other Switch (from the RSM on the 1st Switch).

Yes configured in the proper subnet

Have you set an ip route default route making the RSM the next hop for anything going to a remote network?

HTH

Rick

Thanks for your replies..... I'm acutally using eigrp which all is fine, routing is happy for all networks on my remote networks.

I can ping from the the RSM to the switch, but still cannot from the switch to the RSM.

EIGRP is great for the RSM. But it does not supply any information to the switch (layer 2) management interface - which is what I thought you were trying to use.

For a moment, do not think about the RSM but think only of the switch configuration. Does it have anything that tells it how to get to a destination that is not local?

HTH

Rick

From the RSM have you done a show interface vlan to make sure that it is not admin down. On some switches when you first create the vlan you have to do a no shut to bring it up. Hope this helps.

Jason Smith

www.smif101.com

Hi Jason, yes I've made sure that the interfaces were up. Thanks