[mythtv] Q about networking after recent networking improvements in master
pgbennett at comcast.net
Sun Apr 16 18:36:12 UTC 2017
On 04/16/2017 01:16 PM, Bill Meek wrote:
> $ ifconfig
> enp4s0 Link encap:Ethernet HWaddr 1c:6f:65:4a:85:15
> inet addr:192.168.1.221 Bcast:192.168.1.255 Mask:255.255.255.0
> inet6 addr: fd14:4bf7:d5bf:0:1e6f:65ff:fe4a:8515/64
> inet6 addr: fd14:4bf7:d5bf:0:4c4c:afde:fb87:7981/64
> inet6 addr: fdf9:a66:2cd8:1::221/64 Scope:Global
> inet6 addr: fd14:4bf7:d5bf:0:b52e:f578:ce6b:8ceb/64
> inet6 addr: fe80::1e6f:65ff:fe4a:8515/64 Scope:Link
> inet6 addr: fd14:4bf7:d5bf:0:d3bd:3a12:6018:90cb/64
> fd14... = magic to me, fdf9... = the ULA I made up and configured.
> the fd14:4bf7:d5bf:0/64 prefix was fdec:somethingElseIdon'tRemember.
> they're some kind of stale temporary address. Just don't know. But if
> not a reliable kernel feature, it's of no value to Peter's question.
> [my ISP only provides GUAs to their business customers and based on my
> conversation with them, they have no plans to start]
It seems like you have an over-enthusiastic router, which created 4 ULA
addresses for 1 server.
Mine, on the other hand, generates none, but I do get a GUA from Comcast:
enp0s25 Link encap:Ethernet HWaddr bc:5f:f4:f8:a8:a2
inet addr:192.168.0.188 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: 2601:183:101:18dc:5e04:34b5:7af4:6714/64 Scope:Global
inet6 addr: fe80::1c98:f936:7f9e:3afb/64 Scope:Link
inet6 addr: fd3d:63f5:6a89:1::10/64 Scope:Global
The fd3d is the one I create and assign in the script I mentioned before.
If your ISP does not give you Global addresses then you cannot access
IPV6 web sites. They seem to think only businesses need that??? That's
Comcast seems to be on the ball in that respect. They give an IPv6 range
to users, and their websites and their email servers all are IPv6
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