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Old 02-25-2013, 06:32 AM   #1
asiva
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Registered: Feb 2013
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ipv4 mapping


Hi,

I have a RHEL 2.6.32 kernel.
Does anyone know if this supports ipv4 mapping for addresses?
i.e. if I have a service using IPv4 address that listens on a tcp6 socket, then it should display the address as a ipv4 mapped address.
Since I am unable to configure such a setup, thought I could find out directly through this forum.

Thanks!

- Anita
 
Old 02-26-2013, 02:36 PM   #2
nini09
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What tool do you talk about, netstat?
 
Old 02-26-2013, 10:39 PM   #3
asiva
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Hi nini,

I havent used any netstat yet as I am unable to bring that setup first.
So just checking around if anybody have prior knowledge about this ipv4 mapping for ipv6 address for that kernel version.

Regards,
asiva
 
Old 02-27-2013, 02:23 PM   #4
nini09
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I don't know following information is useful for you.
Linux supports IPv4-mapped IPv6 addresses and thus a process on Linux can listen only on an IPv6 port and still communicate with IPv4 hosts. To the server, it is always talking only IPv6; but IPv4 clients are automaticaly connected to the server via the IPv4 to IPv6 mapping that the Linux TCP stack(s) do.
 
  


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