Set GRE in the network:
config interface 'gre'
option peeraddr '192.168.11.244'
option man '1500'
option proto 'gre'
option zone 'wan'
option ttl '255'
config interface 'gres'
option ifname '@gre'
option proto 'static'
option ipaddr '10.0.0.2'
option netmask '255.255.255.0'
Add a firewall rule to allow GRE into the router
View routing table:
~# route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
default 192.168.1.1 0.0.0.0 UG 0 0 0 eth1
1.1.1.1 * 255.255.255.255 UH 0 0 0 br-lan
10.0.0.0 * 255.255.255.0 U 0 0 0 gre-gre
192.168.1.0 * 255.255.255.0 U 0 0 0 eth1
192.168.1.1 * 255.255.255.255 UH 0 0 0 eth1
192.168.2.0 * 255.255.255.0 U 0 0 0 gre-gre
192.168.10.0 * 255.255.255.0 U 0 0 0 br-lan
192.168.11.244 192.168.1.1 255.255.255.255 UGH 0 0 0 eth1
If there is no firewall, there will be problems.