M and O bit implementation

[M Kaushal]

Hi Steinar

Thanks for help.

According to my understanding on this, we will have to introduce some new
daemon process which will broadcast Router Solicitation messages and check
Router Advertisements for M/O bits and then trigger DHCPv6 client daemon
accordingly.

I will really appreciate if you can help me with one more query here: ( I
really tried to search this on world wide web but no luck till now)

--> Is there any existing process on Linux / HP-UX  system which sends RS
like radvd on Linux and rtradvd on HP-UX which are RA daemons.

Thanks again.
-- Mukesh Kaushal


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  |sthaug at nethelp.no                                                                                                                                 |
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  |m.kaushal at tcs.com                                                                                                                                 |
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  |dhcp-users at lists.isc.org                                                                                                                          |
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  |05/06/2011 02:17 PM                                                                                                                               |
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  |Re: M and O bit implementation                                                                                                                    |
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> I have following queries regarding DHCPv6 and M/O bit set in RA (Router
> Advertisement) :
>
> 1. Can some one help me out with the concept of M and O bit in DHCPv6 ?

M and O are bits in the RA header, thus sent from router to client. M
tells the client to try to get an address using DHCPv6, O tells the
client to get "other" information via DHCPv6 (e.g. DNS servers, domain
name, NTP servers).

It is the *operating system* (either the kernel or some process) which
handles the RA messages, and thus it is the *operating* system* that
needs to react to the the M and O bits - for instance by communicating
with a DHCP client.

> 2. My current version of DHCPv6 does not support this feature. So how can
I
> implement this feature into DHCPv6 server/client ?

As mentioned above it is the operating system that needs to react to
the M and O bits, not the DHCPv6 server/client.

> 3. Does any version of ISC DHCPv6 support this M/O bit implementation ?

See above.

Steinar Haug, Nethelp consulting, sthaug at nethelp.no



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