Single for ftp, telnet etc to support IPv6 & IPv4

[Prabhpreet]

Can anyone elaborate me on the exact aim of the followin problem statement, and suggest where I could find useful info to sole it!!

The need is to create single daemon for each of the functionality such as ftp, telnet, bind to support both IPv4 and IPv6 stacks simultaneously in dual protocol stack environments. Today, there exists
separate daemons for v4 and v6 and this is a problem since they use the same port number when both stacks need to be supported.

SHAH

[Stuart Browne]

What's so hard to understand about that statement? It seems faily obvious.

Currently, there exists 2 'current' versions of a large number of utilities. One for use in the 'ipv4' world (xxx.xxx.xxx.xxx), and one for the 'ipv6' world (xx:xx:xx:xx:xx:x... whatever).

There would be much development going on to try get a single set of utilities/daemons of which will operate in both worlds without conflicting with each other (thus meaning you don't have to have one DNS server for ipv4, and a 2nd DNS server for ipv6!).

*shrug* not hard to understand.

[U.SivaKumar_2]

Hi,

The statement says that.

The future goal is to write a single daemon for TCP/IP applications such as ftp trelnet which will support both IPV4 amd IPV6 simultaneously for dual protocol use.

Say If i want ipv6 telnet i should be able to use /usr/sbin/in.telnetd daemon with a special
option eg. -v6

And If someone wants to use ipv4 telnet he should start same /usr/sbin/in.telnetd with
option eg -v4

But today there are separate daemons (executables) for ipv4 and ipv6 . So there can be only one (either ipv4 or ipv6) running simultaneously as the running daemon will occupy the common port ( In telnet port 23)
which will prevent the other daemon to occupy the port.

regards,
U.SivaKumar

[I_M]

Hi

I think unix wants to keep it simple from the biginning. So I don't mind if they are separated.

Its just my opinion, not the answer.

Regards,

[Paul R. Dittrich]

I'm not sure that I would WANT what you ask for.

If I run only IPv4 clients then I certainly don't need all the extra baggage for a v6 stack on the server.

And if I run IPv6 clients, then isn't v4 functionality already a subset of that so older v4 clients can still connect?

I don't understand the need to support both stacks at once the way you describe.

Paul

[Prabhpreet]

Hi SivaKumar

Thanks for giving me an insight into the problem. Can you please suggest where can I get hold of good material so as to accomplish this task. I am an engineering student, and have done a paper on linux & x-win. this is my minor proj and have to do it in less than 2 months. Please suggest how I go about solving the problem.

Your response is valuable for me

Regards

Prabhpreet Shah