hostname "DSLite-B4-IIJ-SEIL" timezone "Japan" environment login-timer 300 option ip monitor-linkstate on option ip update-connected-route on option ipv6 monitor-linkstate on option ipv6 update-connected-route on interface lan0 add 192.168.31.1/24 interface lan0 add 2400:8700:31:400::1/64 interface lan1 add 2400:8700:31:500::cafe/64 interface tunnel0 tunnel 2400:8700:31:500::cafe 2400:8700:31:500::1 interface tunnel0 mtu 1460 interface tunnel0 tcp-mss auto route add default tunnel0 route6 add default 2400:8700:31:500::1 dhcp enable dhcp mode server dhcp interface lan0 enable dhcp interface lan0 expire 24 dhcp interface lan0 gateway 192.168.31.1 dhcp interface lan0 pool 192.168.31.11 243 dhcp interface lan0 dns add 192.168.31.1 dhcp6 server interface lan0 enable dhcp6 server interface lan0 dns add 2400:8700:31:ca11::53 dns forwarder enable dns forwarder add 2400:8700:31:ca11::53 ntp enable ntp server add 2001:3a0:0:2001::27:123 resolver enable resolver address add 2400:8700:31:ca11::53 rtadvd enable rtadvd interface lan0 enable rtadvd interface lan0 other-flag on rtadvd interface lan0 advertise auto sshd enable httpd disable