ipv4 compatible with ipv6

hey there
i have some questions

well lets start

i have external ipv4 network and internal ipv6 network
no how can i access to ipv4 network from ipv6 network ?

is there a way

i was googling and some people talk about ipv6 compatible with 4??



example

10.30.143.1 would be reachable from ipv6 as ::ffff:10.30.143.1 rigth

now check this
itachi@server6:~$ ping6 ::ffff:10.30.143.1
PING ::ffff:10.30.143.1(::ffff:10.30.143.1) 56 data bytes
ping: sendmsg: Network is unreachable
ping: sendmsg: Network is unreachable

--- ::ffff:10.30.143.1 ping statistics ---
2 packets transmitted, 0 received, 100% packet loss, time 1012ms

may i add that the ip 10.30.143.1 is local ipv4 address

eth0 Link encap:Ethernet HWaddr 00:01:80:09:6A:3F
inet addr:10.30.143.1 Bcast:10.30.143.255 Mask:255.255.255.0
inet6 addr: fe80::201:80ff:fe09:6a3f/64 Scope:Link
inet6 addr: 2001:b00:f80e:6c00::1/64 Scope:Global

now what i have to do here?

i would like to bring more services in my network using ipv6 , any ideas ??

regards
..





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On Wednesday 07 March 2007 10:09, Gerdriaan Mulder was heard to say:
> According to this page you need the IPv6 address in the form of ::
> ipv.4ad.res.s, so for example ::10.2.3.4. Here's the link:
> http://www.tcpipguide.com/free/t_IPv6IPv4AddressEmbedding.htm
>
> So probably you need some sort of IPv4-to-IPv6 router that converts
> requests from your IPv6 network to the IPv4 internet and vice
> versa.

Converting v4 to v6 and vice versa would be a gateway.

There would also have to be a DNS translation function which would
convert the results of an external DNS query into ::10.2.3.4
notation.

I think it would be very neat to have such a dual gateway setup in a
Linux box, something scripted and automatic, a modified DNS caching
system I suppose. Darned shame I am not a programmer.

Curt-

- --
September 11th, 2001
The proudest day for gun control and central
planning advocates in American history

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