D-Link DES-3326SR Layer 3 Switch
RIP Version 1 Message Format
There are two types of RIP messages: routing information messages and information requests. The same format is used by
both types.
The COMMAND field specifies an operation according the following table:
RIP Command Codes
Command Meaning
1
Request for partial or full routing
information
2
Response containing network-
distance pairs from sender’s
routing table
Turn on trace mode (obsolete)
4
Turn off trace mode (obsolete)
5
Reserved for Sun Microsystem’s
internal use
9 Update
Request
10 Update
Response
11 Update
Acknowledgement
3
The field VERSION contains the protocol version number (1 in this case), and is used by the receiver to verify which version
of RIP the packet was sent.
RIP 1 Message
RIP is not limited to TCP/IP. Its address format can support up to 14 octets (when using IP, the remaining 10 octets must be
zeros). Other network protocol suites can be specified in the Family of Source Network field (IP has a value of 2). This will
determine how the address field is interpreted.
RIP specifies that the IP address 0.0.0.0 denotes a default route.
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