routing between subnets- no commands needed?
I am setting up a cisco router with a few vlans. The vlans seem to route ip traffic between each other without any routing commands. Is that correct or do i have something setup wrong? So, i have a vlan with the subnet 10.30.0.0/24 and another 10.10.0.0/24 yet without any special routing commands i can ping computers on both networks. How is that happening and how can i stop it?
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The 6500, along with a few other L3 switches, will automatically route traffic between VLAN's it has a L3 interface on.
You still need the route command to define routes to L3 networks that the 6500 does not have a L3 interface on.
You still need the route command to define routes to L3 networks that the 6500 does not have a L3 interface on.
ASKER
Perfect, thanks guys!
Hi There,
Interface vlans or SVI's by default when enable routing on a L3 switch.
If you want to restrict it use ACLs.
Below is an example:
http://www.asanka.me/2014/02/disabling-inter-vlan-routing-using-acls/
Interface vlans or SVI's by default when enable routing on a L3 switch.
If you want to restrict it use ACLs.
Below is an example:
http://www.asanka.me/2014/02/disabling-inter-vlan-routing-using-acls/
You can't disable routing on 6500 switch any more. Setup ACL's on vlan interfaces to block communication.
On lower end switches, you can disable routing by typing: no ip routing
On lower end switches, you can disable routing by typing: no ip routing
ASKER
ip route 10.30.0.0 255.255.255.0 Vlan30
so what do i need commands like that for? I don't necessarily want to block the traffic, I just didn't expect that behavior.