ffff:145.16.88.79:62939

antolepore · 10-17-2012, 03:32 AM

ffff:145.16.88.79:62939

What kind of IP is this? ipv4 in an ipv6

I got it as an output of the command:

Code:

[lzcjzq@freedom ~] $ netstat -tuape | grep ssh
...
tcp        0      0 freedom.:ssh  ::ffff:145.16.88.79:62939  ESTABLISHED root     319789     -
...

acid_kewpie · 10-17-2012, 03:41 AM

it's just how netstat shows an IPv4 IP.

mmheera · 10-17-2012, 03:45 AM

"::ffff:145.16.88.79" looks more like a IPv4-mapped IPv6 address. Here is a quote from wikipedia:

Quote:

Hybrid dual-stack IPv6/IPv4 implementations recognize a special class of addresses, the IPv4-mapped IPv6 addresses. In these addresses, the first 80 bits are zero, the next 16 bits are one, and the remaining 32 bits are the IPv4 address. You may see these addresses with the first 96 bits written in the standard IPv6 format, and the remaining 32 bits written in the customary dot-decimal notation of IPv4. For example, ::ffff:192.0.2.128 represents the IPv4 address 192.0.2.128. A deprecated format for IPv4-compatible IPv6 addresses was ::192.0.2.128.[58]

http://en.wikipedia.org/wiki/IPv6

antolepore · 10-17-2012, 04:37 AM

exactly what I had in mind
thanks