Solved: New Vlan not pinging all switches or firewall.

brandinstitute · ‎01-19-2010

I created a new Vlan in my core switch, from another access switch on the network I programmed an interface port to use that VLAN. From that port I try to ping all my other switches but I can only ping some of them not all. From all other Vlans I can ping everything on the network just fine. Also my default route is the firewall and I cannot ping that either.

I need some advice. Thanks

Reza Sharifi · ‎01-19-2010

Hello Brandin,

Did you also add the route to the firewall to allow the new subnet?

HTH

Reza

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Reza Sharifi · ‎01-19-2010

Hello Brandin,

Did you also add the route to the firewall to allow the new subnet?

HTH

Reza

brandinstitute · ‎01-19-2010

Thank you! I just added the routing to the firewall and I'm able to go out to the internet. Anything I should check regarding the other issue with not being able to ping all the switches and routers from this new VLAN... I can do it from all the other ones.

Thanks again.

Javier.

Reza Sharifi · ‎01-19-2010

Hello Javier,

Make sure the new IP segment is added to whatever routing protocol you are running (OSPF, ISIS, RIP,etc,,,)

HTH

Reza

blanchard1 · ‎01-19-2010

If you create a SVI and assign an IP address the SVI interface will be down down until you create the vlan with a vlan x statement. (x being the VLAN # you created)

You can run a sh ip int br to verify the vlan is up up on the core switch.

brandinstitute · ‎01-19-2010

Yes, the VLAN is up, I also issued the no shutdown command when I assigned the ip addresses to the VLAN... I also check for Access Lists but there are none created that will deny pinging in the switches that I can't ping.

BTW. I can ping hosts on those switches. Its just the administrative IP on the switch that I can't ping.