7-16 Administrator’s Handbook
•Receive RIP is always visible. Here you select Off, v1, v2, Both v1 and v2, or v2 MD5 Authentication from
the pop-up menu. For MD5 authentication, you must select v2 MD5 Authentication.
•If NAT is disabled, Transmit RIP is visible. Here you select Off, v1, v2 (broadcast), v2 (multicast), v2 MD5
(broadcast), or v2 MD5 (multicast) from the pop-up menu. For MD5 authentication, you must select v2
MD5 (either broadcast or multicast).
•If you chose any Transmit RIP option other than Off, TX RIP Policy is visible. Here you select Poison
Reverse or Split Horizon from the pop-up menu. Unless otherwise instructed, leave the default Poison
Reverse.
•If either Receive RIP or Transmit RIP is set to v2 MD5 Authentication, RIP v2 Authentication Keys is
visible. Selecting RIP v2 Authentication Keys takes you to the RIP v2 Authentication Keys screen, where you
can configure your keys in the same manner as in “Adding a key,” on page 13. After configuring your key,
press COMMIT in the Add or Change Key screen, then press Escape three times to return to the Add or
Change Connection Profile screen.
•Select COMMIT in the Connection Profile screen and press Return. Your changes become effective for the
specified Connection Profile.
Power interruptions
Motorola Netopia® 4000 Series routers use NTP updates to set the correct time. Consequently, the starting
time after a power cycle, whether from power failure or deliberately switching power off and on, is in the year
1904. This could invalidate some keys that would otherwise be valid. To prevent this, if the system time is
before the year 2000, all keys are considered valid regardless of their specified date and time ranges.
RIP Profile Parameters
Receive RIP: v2 MD5 Authentication
Transmit RIP: v2 MD5 (multicast)
TX RIP Policy... Poison Reverse
RIP v2 Authentication Keys...