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Watchguard Firewall Network configuration


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 - default gateway - usable IP Address

Subnet mask

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

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1 Solution
miller3773Network AdministratorCommented:
what model of the watchgaurd?

is your adsl router your only Internet connection?
Nick_DAuthor Commented:
3 series, yes the watchguard currently plugs into a peplink device in drop in mode. The fibre connection is to replace the adsl connections.
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.
Nick_DAuthor Commented:
This was the issue, I forgot to enable NAT on the outbound connection.

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