What is routed WAN?

Answer 1

Routed Mode is a semi-transparent choice where the network kit directly behind the Ecessa device continues to have an IP address from the WAN subnet designed on them. Routed Mode usually needs the least amount of configuration changes to the existing network equipment (the existing firewall, etc.) and can minimalize the amount of network downtime during the actual installation process. It is also reliant on the below criteria. There are two different ways to implement Routed Mode on the Ecessa. The first is:

• Existing WAN subnet cover is at least 29 bits (/29 or 255.255.255.240)

• Existing WAN has four contiguous addresses that fall inside a /30

• The gateway address on the firewall or the real gateway device address can be changed.

However, these requirements make incompetent use of available IP addresses and create difficulty in completing changes to the WAN subnet mask info in the future (for example, if you change ISPs or obtain a new subnet from them).

The second way is:

• The ISP gives you 2 blocks of addresses: a /30 or a /29, & a second of varying size.

• The ISP uses the /30 or /29 to the way the subnet of varying size to an IP that you allocate to the Ecessa device and then we configure the subnet of varying size on the LAN of the Ecessa.

Thanks to wanos.co for providing this information to me.