TekSavvy → Re: IPv6 Vancouver

We recently found an obscure problem on those ERX's. Phibian helped us find it... that may have been related to a similar issue..

We're not aware of any other problem though.. if you see problems, please let us know.

The @hsiservice login is way better than it was but not quite (although very close) to what the @teksavvy login is at.

I'm on 25/10 and with the teksavvy login a speedtest.net to the TekSavvy server in Toronto is 24+ and rock solid. Switching to the hsiservice login and it reports 22.67 and it wavers up and down quite a bit during the test, so it is close but not quite the same.

Let me know if you want packet captures or tcptrace analysis or any other help troubleshooting this.

Any chance we can keep this on topic "IPv6 Vancouver" ?

I tried plugging my computer directly into my modem to see what wireshark would give me. Should have done that earlier sorry.

Here is the result. I did notice the MTU was 1452

No. Time Source Destination Protocol Length Info
13 25.103588000 fe80::90:1a00:343:14ab ff02::1 ICMPv6 112 Router Advertisement

Frame 13: 112 bytes on wire (896 bits), 112 bytes captured (896 bits) on interface 0
Interface id: 0
WTAP_ENCAP: 25
Arrival Time: Aug 13, 2013 19:29:42.242861000 PDT
[Time shift for this packet: 0.000000000 seconds]
Epoch Time: 1376447382.242861000 seconds
[Time delta from previous captured frame: 1.438332000 seconds]
[Time delta from previous displayed frame: 1.438332000 seconds]
[Time since reference or first frame: 25.103588000 seconds]
Frame Number: 13
Frame Length: 112 bytes (896 bits)
Capture Length: 112 bytes (896 bits)
[Frame is marked: False]
[Frame is ignored: False]
[Protocols in frame: sll:ipv6:icmpv6]
[Coloring Rule Name: ICMP]
[Coloring Rule String: icmp || icmpv6]
Linux cooked capture
Packet type: Unicast to us (0)
Link-layer address type: 512
Link-layer address length: 0
Protocol: IPv6 (0x86dd)
Internet Protocol Version 6, Src: fe80::90:1a00:343:14ab (fe80::90:1a00:343:14ab), Dst: ff02::1 (ff02::1)
0110 .... = Version: 6
[0110 .... = This field makes the filter "ip.version == 6" possible: 6]
.... 0000 0000 .... .... .... .... .... = Traffic class: 0x00000000
.... 0000 00.. .... .... .... .... .... = Differentiated Services Field: Default (0x00000000)
.... .... ..0. .... .... .... .... .... = ECN-Capable Transport (ECT): Not set
.... .... ...0 .... .... .... .... .... = ECN-CE: Not set
.... .... .... 0000 0000 0000 0000 0000 = Flowlabel: 0x00000000
Payload length: 56
Next header: ICMPv6 (58)
Hop limit: 255
Source: fe80::90:1a00:343:14ab (fe80::90:1a00:343:14ab)
Destination: ff02::1 (ff02::1)
[Source GeoIP: Unknown]
[Destination GeoIP: Unknown]
Internet Control Message Protocol v6
Type: Router Advertisement (134)
Code: 0
Checksum: 0x9c12 [correct]
Cur hop limit: 0
Flags: 0xc0
1... .... = Managed address configuration: Set
.1.. .... = Other configuration: Set
..0. .... = Home Agent: Not set
...0 0... = Prf (Default Router Preference): Medium (0)
.... .0.. = Proxy: Not set
.... ..0. = Reserved: 0
Router lifetime (s): 1800
Reachable time (ms): 0
Retrans timer (ms): 0
ICMPv6 Option (MTU : 1452)
Type: MTU (5)
Length: 1 (8 bytes)
Reserved
MTU: 1452
ICMPv6 Option (Prefix information : 2607:c000:100:FFUU::/64)
Type: Prefix information (3)
Length: 4 (32 bytes)
Prefix Length: 64
Flag: 0xc0
1... .... = On-link flag(L): Set
.1.. .... = Autonomous address-configuration flag(A): Set
..0. .... = Router address flag(R): Not set
...0 0000 = Reserved: 0
Valid Lifetime: 3600
Preferred Lifetime: 3000
Reserved
Prefix: 2607:c000:100:5XXX:: (2607:c000:100:5XXX::)