I'm looking at setting up a filter on our Draytek gateway router (2920) for our internal email server to only be accessible via a smarthost service I'm trialing.
Currently our router does not have the data filter enabled.
What is the default behaviour if I enable this? Will it block all or pass all traffic?
Do I need to configure all IP Objects and Groups for everything on my network that needs to connect to something on the WAN and filters associated to them and their traffic direction before enabling the data filter?
Finding this a bit confusing on the Draytek.
Cheers
Sean