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Watchguard Firewall Network configuration

Posted on 2013-10-24
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Last Modified: 2013-11-08
Hi

I have a watchguard firewall which is currently connected to an adsl router configured in drop in mode.

I have just had a fibre connection installed and have been given the following network information for it

89.198.0.105 - default gateway
89.198.0.106 - usable IP Address

Subnet mask 255.255.255.252

What is the best way to configure the network settings in the firewall, is it best to use bridged mode?

Thanks
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Question by:Nick_D
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Expert Comment

by:miller3773
ID: 39598829
what model of the watchgaurd?

is your adsl router your only Internet connection?
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Author Comment

by:Nick_D
ID: 39598873
3 series, yes the watchguard currently plugs into a peplink device in drop in mode. The fibre connection is to replace the adsl connections.
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Accepted Solution

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dpk_wal earned 500 total points
ID: 39632659
As I understand currently your WG is in drop-in mode; which means all server behind it would be on public IP.
Now as you are changing ISP; you can continue to remain in drop-in mode; but then you would have to manually change IP address on each and every device behind WG.
OR you can configure the devices behind WG on a private IP subnet; may be also use DHCP [if applicable] and configure WG in routed mode.

The only thing you should watch out for is:
In drop-in mode there is NO NAT; whereas moment you opt for routed or gateway mode; there would be NAT.
If you have any application which BREAKS with NAT then remain in drop-in mode or convert to routed for ease of change of ISPs.

Please let know if you need any more details.

Thank you.
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Author Closing Comment

by:Nick_D
ID: 39632917
This was the issue, I forgot to enable NAT on the outbound connection.

Thanks
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