On 10-Jan-1999, at around 5:30, Alan Cox wrote:
] > It appears that the CISCO refuses to forward UDP packets if the
] > checksum is not correct. Part of the IPConfig documentation
] > states that 'UDP checksum not calculated -- explicitly allowed
] > in BOOTP RFC'.
]
] The UDP checksum must be correct. Its just there is a value which
] means "unchecksummed". So long as that is set it ought to behave
]
] > I've had a look at writing code to add a checksum to the packet
] > being sent ('ic_bootp_send_if' in 'net/ipv4/ipconfig.c') but can't
] > get the right combination. :( It's the sort of thing which would
] > take a person who knows how it works a couple of minutes.
] > (I've spent most of the day on this problem so far.. :( )
]
] I believe you need to add
]
] b->udph.check = 0;
I have just added this line to 2.2.0-pre6 and still no go.
Would it be difficult (and not incorrect) to enable the
checksum?
] I think the originator of the code misunderstood the rfc intentions
]
] Alan
-Greg
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