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Topic: Multi-NIC / VLAN / No Internet!  (Read 1254 times)
« on: September 18, 2012, 19:02:32 »
Pyr3x *
Posts: 4

I am running multi-nics each with a specific VLAN ID Attached and some rules to control access.

Thus far I can only get internet access on VLANS that get the firewall rule with the wildcard "*" as the destination. If I narrow it down and specify WAN for example it fails.

Any idea how I can control net access to VLANS / NICS and why is my firewall rule failing?

Note: I have edited and re-checked the firewall rule over and over but ONLY if that stupid wildcard is in place is it possible to use the internet. This is bad simply because I cannot allow that specific VLAN to cross over.

Any help is always appreciated.
« Reply #1 on: September 19, 2012, 02:12:58 »
gus *
Posts: 27

That is correct behavior.

Say you are on Vlan 3, you need to add block rules to Vlan 1 and 2 if you want to stop them from talking to each other and then alllow access to *

The issue is your machines on your vlans don't access your WAN IP, they are accessing whatever IP that DNS resolves for www.website.com.  So you need to allow access to * at some level.  All ports or limit it to 53, 80 and 443 if you only want web access.

Remember rules are checked top down.

Hope this helps a little.
 
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