Don't know how many of you dial up your pppoe adsl account on windows directly, but if you do, chances are your windows is establishing a teredo ipv6 tunnel, and it seems google started serving youtube videos on IPv6.
What does this mean? It could be the reason your Youtube is slower than usual.
Usually I get my Youtube videos from Tenet's Google cache servers, but once IPv6 is enabled, it comes from somewhere else.
ie.
Code:
C:\Users\Tin>ping v6.lscache2.c.youtube.com.
Pinging v6.lscache2.c.youtube.com [2800:3f0:4001:2::7] with 32 bytes of data:
Reply from 2800:3f0:4001:2::7: time=418ms
Reply from 2800:3f0:4001:2::7: time=420ms
Reply from 2800:3f0:4001:2::7: time=422ms
Reply from 2800:3f0:4001:2::7: time=421ms
Ping statistics for 2800:3f0:4001:2::7:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 418ms, Maximum = 422ms, Average = 420ms
SAIX Looking Glass:
Code:
tpr-route-server>ping v6.lscache2.c.youtube.com
Translating "v6.lscache2.c.youtube.com"...domain server (196.43.45.190) [OK]
Translating "v6.lscache2.c.youtube.com"...domain server (196.43.45.190) [OK]
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2800:3F0:4001:2::7, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
MTN Looking Glass:
Code:
lg2.cpt1.za#ping v6.lscache2.c.youtube.com
Translating "v6.lscache2.c.youtube.com"...domain server (196.7.0.138) [OK]
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 173.194.13.135, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 160/160/164 ms
lg2.cpt1.za#
lg1.jnb6.za#ping v6.lscache2.c.youtube.com
Translating "v6.lscache2.c.youtube.com"...domain server (196.7.0.138) [OK]
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2A00:1450:4004:2::7, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 248/249/252 ms
Home PC without IPv6
Code:
C:\Users\Tinuva>ping v6.lscache2.c.youtube.com
Pinging v6.lscache2.c.youtube.com [155.232.240.23] with 32 bytes of data:
Reply from 155.232.240.23: bytes=32 time=34ms TTL=56
Reply from 155.232.240.23: bytes=32 time=9ms TTL=56
Reply from 155.232.240.23: bytes=32 time=9ms TTL=56
Reply from 155.232.240.23: bytes=32 time=8ms TTL=56
Ping statistics for 155.232.240.23:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 8ms, Maximum = 34ms, Average = 15ms