find netmask for offered lease in dhclient code

[s m]

thank you so much. it is a hint for me to search more in code. i hope to
find something.


On Mon, Jul 15, 2013 at 2:04 PM, Olivier Nicole <olivier2553 at gmail.com>wrote:

> > thanks Olivier, but may i ask you to explain it more? i have seen that
> > there is a struct option_data in offered_lease in code but when these
> > options set, how can i see the netmask value? where is it kept?
>
> Well, I am afraid I have no more explanation, I just did a dhcp renew
> while running wireshark and check the contents of the dialog. I could
> see that in the DHCP offer, there is an option field with holds the
> netmask. I did not dig any further.
>
> Olivier
>
> >
> >
> > On Mon, Jul 15, 2013 at 1:43 PM, Olivier Nicole <
> olivier.nicole at cs.ait.ac.th
> >> wrote:
> >
> >> Hi,
> >>
> >> > i want to change dhclient code and customize it. in order to do that,
> i
> >> > need to know the netmask for offered ip. i see code and found that
> struct
> >> > client_lease  *offered_leases, keeps information about offered lease
> such
> >> > as ip address but this structure hasn't any field about netmask. i
> don't
> >> > know how i can find the netmak for this offered ip address.
> >>
> >> According to wireshark, it's in option t=1, l=4
> >>
> >> Olivier
> >>
> >> > any one has traced dhclient code before? how can i see the netmask for
> >> > offered ip?
> >> >
> >> > thanks in advance,
> >> > SAM
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> >
> >
> >
> > --
> > *Sa.M*
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