Allied Telesis AT-S63 - Manual (Page 562)

Chapter 33: Internet Protocol Version 4 Packet Routing Commands
562 Section VII: Internet Protocol Routing
This command adds RIP to the VLAN12-2 interface. It configures the
protocol to send version 2 packets and accept packets of either version.
The password “net25aqy” is used for authentication:
add ip rip interface=vlan12-2 send=rip2 receive=both
authentication=pass password=net25aqy