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VLAN Route to the Internet

Darwin Lambeth

I have a internal VLAN/Route behind my Sophos firewall and I cannot get out to the internet. I am using a Cisco 3950 setup with VLANS and I can access all nodes in my main network and my main network can access my VLAN devices internally, however my VLAN subnet cannot access the internet. The VLAN with the trouble is off my Cisco router. Below is a drawing of my network. I'm hoping its just a packet filter rule that needs to be added. Since my Cisco router address is 10.10.100.100 it should inherently be able to route to the internet I would think, but machines on my VLAN (192.168.25.x) can only access local lans. 



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  • 0 in reply to DKKDG

    Ahh thanks that was the issue.  I had done this before but I must have done something incorrectly. I created a masquerade from the (192.168.25.x/24) network to External then created packet filter allowing traffic from the same subnet to the internet and it's working now. 

     

    Thanks for all of your help.

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