Default gateway on WAN interface

Installing and Using OpenWrt
1

Hi,
my OpenWrt router is connected to a cable modem.
I get a public IPv4 via DHCP and IPv6 via DHCPv6.
There's no issue with internet access.
However, the routing table shows default gateway on WAN interface:

root@rb760igs:~# ip r
default via 37.xxx.xxx.254 dev wan  src 37.xxx.xxx.112  metric 100 
37.xxx.xxx.0/23 dev wan scope link  metric 100 
172.16.1.0/24 dev br-lan.100 scope link  src 172.16.1.1 
172.16.10.0/28 dev br-lan.10 scope link  src 172.16.10.1

Can you please advise if this default gateway is correct?

2

If it works, yes it is correct. It is provided by the isp’s dhcp server.

3

Actually I expected the default gateway to be on LAN interface.
I mean this is a "regular" setup with Masquerading on WAN firewall zone.

4

The default gateway is the one to which all non-local traffic should be routed. It belongs to the interface that contains the path to the gateway, which means the wan in a basic routing configuration.

5

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