Setup REDs on Bridge Mode

Question

Hi Team, 
 Does anyone have some in-depth on how RED bridged network works. The current documentation seems abit 'outdated'. 
 Also, i would like some clarification in regards to VPN traffic to and from REDs in a bridged setup and how routing is done. 
 Thanks 
 Chacha Kairu

lferrara · Answer

Bridging is used when XG lan and red networks have the same IP/Subnet addresses or when you have more than one network with the same ip/mask. For example, 2 red sites with same addresses. 
 community.sophos.com/.../red-on-same-subnet 
 Regards

lferrara · Answer

Since you have VPN on another end that you cannot control, bridging does not help. If you have multiple remote site and the other end needs to access the red network, you need to collaborate with the other party. You cannot avoid that. If you know the network ip/mask you will assign to the red networks, you can communicate them all at once and setup one-by-one red network. 
 Regards

lferrara · Answer

If you are designing A new network A new network, it is better to start with different IP and subnet. Bridging is an option when you don’t have other way to deal with the problem. Otherwise, use nat as Luca suggested.