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[6bone] problem with ftp.netbsd.org



Randy Bush [mailto:[email protected]] wrote:

> % ping6 ftp.netbsd.org
> PING6(56=40+8+8 bytes) 2001:418:1:0:2e0:18ff:fe02:6ec9 --> 
> 3ffe:8050:201:1860:2a0:c9ff:feed:b7ea
> 16 bytes from 3ffe:8050:201:1860:2a0:c9ff:feed:b7ea, 
> icmp_seq=0 hlim=59 time=33.077 ms
> 16 bytes from 3ffe:8050:201:1860:2a0:c9ff:feed:b7ea, 
> icmp_seq=1 hlim=59 time=32.97 ms
> 16 bytes from 3ffe:8050:201:1860:2a0:c9ff:feed:b7ea, 
> icmp_seq=2 hlim=59 time=32.597 ms
> 
> % uname -a
> FreeBSD roam.psg.com 4.6-RC FreeBSD 4.6-RC #18: Fri May 24 
> 14:09:23 PDT 2002   6

I got some of those too, they will syn/ack but no data :(

tunnelserver.ipng.nl:
8<--------------------
[email protected]:~$ traceroute6 ftp6.netbsd.org
traceroute6 to ftp6.netbsd.org (3ffe:8050:201:1860:2a0:c9ff:feed:b7ea)
from 2001:6e0::250:4ff:fe4a:7708, 30 hops max, 16 byte packets
 1  Amsterdam.core.ipv6.intouch.net (2001:6e0::2)  1.75 ms  0.411 ms
0.388 ms
 2  3ffe:1280:1001:1::1 (3ffe:1280:1001:1::1)  298.968 ms *  315.534 ms
 3  3ffe:80a::1 (3ffe:80a::1)  159.079 ms  159.268 ms  158.932 ms
 4  3ffe:8050:ffff::fffd (3ffe:8050:ffff::fffd)  160.742 ms  160.487 ms
159.343 ms
 5  ftp6.netbsd.org (3ffe:8050:201:1860:2a0:c9ff:feed:b7ea)  159.866 ms
159.95 ms  160.722 ms

[email protected]:~$ ping6 ftp6.netbsd.org
PING ftp6.netbsd.org(ftp6.netbsd.org) 56 data bytes
64 bytes from ftp6.netbsd.org: icmp_seq=0 time=160.3 ms
64 bytes from ftp6.netbsd.org: icmp_seq=1 time=349.0 ms
64 bytes from ftp6.netbsd.org: icmp_seq=2 time=197.7 ms
64 bytes from ftp6.netbsd.org: icmp_seq=3 time=202.2 ms
64 bytes from ftp6.netbsd.org: icmp_seq=4 time=206.6 ms
64 bytes from ftp6.netbsd.org: icmp_seq=5 time=210.5 ms

--- ftp6.netbsd.org ping6 statistics ---
6 packets transmitted, 6 packets received, 0% packet loss
round-trip min/avg/max = 160.3/221.0/349.0 ms
[email protected]:~$ uname -a
Linux tunnelserver 2.4.17ipng #1 Fri Jan 25 14:54:39 CET 2002 i586
unknown
[email protected]:~$ telnet ftp6.netbsd.org 21
Trying 3ffe:8050:201:1860:2a0:c9ff:feed:b7ea...
Connected to ftp6.netbsd.org.
Escape character is '^]'.

-------------------->8
It will connect, but nothing more, something is dropping packets I
think.
Unfortunatly these boxes all take the same route over amsterdam.intouch
(2001:6e0::2)
so the problem could be behind that box, though I don't think it's that
one as I kinda trust it :)
Odd thing: connecting to port 80 on the ftp6.netbsd.org doesn't get
refused.
Is this thing a v6 loadbalancer ? :)

Greets,
 Jeroen