Question about DHCP implemented basis for "HOPS" field on server message.

yakushig yakushig at gmail.com
Wed Apr 13 03:12:16 UTC 2011


Dear sir/madam,

Hello, I am testing dhcp behavior (DHCP 4.2.1-P1).
And I have question about DHCP implemented basis for "HOPS" field on server message.
Would you please answer my question.

Q. Would you please let us know about basis reference as follows.
-DHCP 4.2.1-P1's server process is following implementation.
------------------------------------------
raw.hops = packet -> raw -> hops;
------------------------------------------
# hops value is inherited from receiving client message (Discovery etc...).


I read following section on RFC 2131.
As far as I understand, the server message's (OFFER,ACK,NAK) 'HOPS' field  are set to 'Zero'.

<RFC2131>
------
4.3 DHCP server behavior
                              :
Field      DHCPOFFER            DHCPACK             DHCPNAK
-----      ---------            -------             -------
'op'       BOOTREPLY            BOOTREPLY           BOOTREPLY
'htype'    (From "Assigned Numbers" RFC)
'hlen'     (Hardware address length in octets)
'hops'     0                    0                   0
                              :

If you have a question about this case, would you please contact me.

Yakushig,
Best regards.




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