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LAN Default Gateway.

Posted on 2013-06-16
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Last Modified: 2013-06-16
Hello everyone,

I have a question about what are the advantages/disadvantages of setting my switch vlan IP as the default gateway for my LAN network (subnet 1) and not the firewall IP?



                           
internet --- firewall --- switch |-------- subnet 1
                             

                              |-------- subnet 1
internet --- firewall --- switch
                                     
Thanks
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Question by:J30A4
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by:djStraTTos
ID: 39251675
Do you want to explain a bit more why would you like to do something like that, to use the switch IP and not the routers?
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by:J30A4
ID: 39251727
Later on down the road we will be adding more subnets.
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Ken Boone earned 500 total points
ID: 39251759
That is exactly the reason to do that.  You don't need to send a bunch of internal traffic to the firewall if you don't need to. Some firewalls will prevent you from doing this anyway.  So it is good practice to set up a layer 3 device inside the firewall if you have it and then use this for the gateway.  I always see companies that use the firewall IP and then later they bring in an addition service, add subnets, other vendor connections, etc.. and then they have to re-do things.
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