Hi all,
I set up a HE IPv6 Tunnel and ping works from both directions fine. My Endpoint lies behind a "Fritzbox" (ipv4 Router doing NAT) on a debian vm. Endpoind is configured just like in the description.
However, when I try to start TCP Traffic like a download, for the first second I get good traffic rates but it drops then to zero. This example is from the endpoint itself:
wget -6 http://se.cdimage.ubuntu.com/kubuntu/releases/17.04/release/kubuntu-17.04-desktop-amd64.iso
--2017-06-15 14:26:52-- http://se.cdimage.ubuntu.com/kubuntu/releases/17.04/release/kubuntu-17.04-desktop-amd64.iso
Auflösen des Hostnamen »se.cdimage.ubuntu.com (se.cdimage.ubuntu.com)«... 2001:67c:1360:8001::1d, 2001:67c:1360:8001::24, 2001:67c:1360:8001::23
Verbindungsaufbau zu se.cdimage.ubuntu.com (se.cdimage.ubuntu.com)|2001:67c:1360:8001::1d|:80... verbunden.
HTTP-Anforderung gesendet, warte auf Antwort... 200 OK
Länge: 1732902912 (1,6G) [application/x-iso9660-image]
In »»kubuntu-17.04-desktop-amd64.iso.1«« speichern.
kubuntu-17.04-desktop-amd64.iso.1 0%[ ] 570,66K 2,78MB/s
kubuntu-17.04-desktop-amd64.iso.1 0%[ ] 1,61M 3,94MB/s
kubuntu-17.04-desktop-amd64.iso.1 0%[ ] 2,25M 1,53MB/s
kubuntu-17.04-desktop-amd64.iso.1 0%[ ] 2,25M 950KB/s
kubuntu-17.04-desktop-amd64.iso.1 0%[ ] 2,25M 682KB/s eta 41m 17s
kubuntu-17.04-desktop-amd64.iso.1 0%[ ] 2,25M 532KB/s eta 41m 17s
kubuntu-17.04-desktop-amd64.iso.1 0%[ ] 2,25M 436KB/s eta 64m 35s
kubuntu-17.04-desktop-amd64.iso.1 0%[ ] 2,25M --.-KB/s eta 64m 35s
kubuntu-17.04-desktop-amd64.iso.1 0%[ ] 2,25M --.-KB/s eta 87m 53s
kubuntu-17.04-desktop-amd64.iso.1 0%[ ] 2,25M --.-KB/s eta 87m 53s
kubuntu-17.04-desktop-amd64.iso.1 0%[ ] 2,25M --.-KB/s eta 1h 51m
kubuntu-17.04-desktop-amd64.iso.1 0%[ ] 2,25M --.-KB/s eta 4h 10m
When I restart this download I get the same behaviour.
What is going on here? I already switched to another tunnelserver but got the same result. I lowered the MTU to 1280 on both ends but no change.
I'm running out of ideas, can somebody give me a hint?
Thanks and best regards
Andreas