Openwrt MWAN3 故障转移配置

编辑/etc/config/mwan3，内容参考如下：

config globals 'globals'
        option mmx_mask '0x3F00'

config interface 'wan'
        option enabled '1'
        option family 'ipv4'
        option reliability '1'
        option initial_state 'online'
        option track_method 'ping'
        option count '1'
        option size '56'
        option max_ttl '60'
        option timeout '2'
        option interval '5'
        option failure_interval '5'
        option recovery_interval '5'
        option down '3'
        option up '8'
        list track_ip '114.114.114.114'
        list track_ip '223.5.5.5'

config interface 'lte'
        option enabled '1'
        option family 'ipv4'
        option reliability '1'
        option initial_state 'online'
        option track_method 'ping'
        option count '1'
        option size '56'
        option max_ttl '60'
        option timeout '2'
        option interval '5'
        option failure_interval '5'
        option recovery_interval '5'
        option down '3'
        option up '8'
        list track_ip '223.5.5.5'
        list track_ip '114.114.114.114'

config member 'wan_m1_w1'
        option interface 'wan'
        option metric '1'
        option weight '1'

config member 'lte_m2_w2'
        option interface 'lte'
        option metric '2'
        option weight '2'

config policy 'wan_only'
        list use_member 'wan_m1_w1'

config policy 'lte_only'
        list use_member 'lte_m2_w2'

config policy 'failover'
        list use_member 'wan_m1_w1'
        list use_member 'lte_m2_w2'
        option last_resort 'unreachable'

config rule 'default_rule_v4'
        option dest_ip '0.0.0.0/0'
        option use_policy 'failover'
        option proto 'all'
        option sticky '0'
        option family 'ipv4'