topic Re: L3 configuration in General Topics

L3 configuration

sib2017 — Sat, 26 Dec 2015 18:21:46 GMT

Hi,

Distribution switch with multiple vlan created L3 interfaces .

Multiple Edge switch connected with distribution switch via L2 trunk .

if i have vlan 2 -10 configured with respective L3 interfaces like 10.0.2.1,10.0.3.1..10.0.10.1 , and i want to monitor traffic between these vlan

How can i configure ?
How the physical toplogy and logical toplogy look like .

Thank you

Re: L3 configuration

pankaku — Sun, 27 Dec 2015 13:19:00 GMT

You have to make sure that traffic among those VLAN passes through the PA firewall then only you can monitor and apply policies.

If the switch have SVI then the traffic will direclty move between the vlan it will not pass through the firewall. One thing you can try is to create the L3 subinterfaces on the firewall and remove the SVI from the switch.

By default the intrazone traffic is allowed and you will not get logging so to log the traffic you have to create security policy as well to log the traffic and to have better control over the traffic.

The link between switch and PA should be a trunk link if you are creating subinterfaces on PA.

Hope this helps!

Re: L3 configuration

reaper — Mon, 28 Dec 2015 07:42:50 GMT

Please take a look at the Getting Started — the Series where we've highlighted Layer3 subinterfaces and Layer2 interfaces

regards

Tom