QTECH
Software Configuration Manual
7-87
7.2.3.2 RIPv2 message format
The format of RIPv2 message is similar with RIPv1.
RIPv2 Message Format
The differences from RIPv1 are stated as following.
·
Version : Version of RIP. For RIPv2 the value is 0x02.
·
Route Tag : Route Tag.
·
IP Address : Destination IP address. It could be a natural network address, subnet address or host address.
·
Subnet Mask : Mask of the destination address.
·
Next Hop : If set to 0.0.0.0, it indicates that the originator of the route is the best next hop; Otherwise it
indicates a next hop better that the originator of the route.
7.2.3.3 RIPv2 authentication
RIPv2 sets the AFI field of the first route entry to 0xFFFF to identify authentication information.
RIPv2 Authentication Message
·
Authentication Type : 2 represents plain text authentication, while 3 represents MD5.
·
Authentication : Authentication data, including password information when plain text authentication is
adopted or including key ID, MD5 authentication data length and sequence number when MD5
authentication is adopted.
&
Note :
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RFC 1723 only defines plain text authentication. For information about MD5
authentication, refer to RFC2082 “RIPv2 MD5 Authentication”.
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With RIPv1, you can configure the authentication mode in interface view. However, the
configuration will not take effect because RIPv1 does not support authentication.
7.2.4
TRIP
Triggered RIP (TRIP), a RIP extension on WAN, is mainly used in dial-up network.