В версии 6.45.8 работало через { :local w1gw [/ip dhcp-client get value-name=gateway number=[/ip dhcp-client find where interface~"WAN1"]] ip route set gateway=$w1gw numbers=[find where comment~"WAN1"] }
В версии 6.45.8 работало через { :local w1gw [/ip dhcp-client get value-name=gateway number=[/ip dhcp-client find where interface~"WAN1"]] ip route set gateway=$w1gw numbers=[find where comment~"WAN1"] }
/ip route set [find comment="isp3route"] gateway=($"gateway-address") disabled=no