Forum - Heartbeat and tunnel sleeps :: SixXS - IPv6 Deployment & Tunnel Broker

Heartbeat and tunnel sleeps

Shadow Hawkins on Thursday, 19 August 2010 13:00:50

Hi, Very strange things are happening on my tunnel these last weeks. I haven't had the tunnel up for months, but a couple of weeks ago I bought a new router and flashed it with openwrt. Now the tunnel works, kind of. The graphs on my tunnel information does not show any latency or heartbeats, but 100% loss. Pinging a ipv6 host from my LAN activates the tunnel for a while and then it falls a sleep again. Could this be a configuration issue or Aiccu on OpenWRT? Also, the Sixxs website have been unreachable from time to time these last weeks. Heartbeats seems to be sent or does Aiccu fool me.

# logread |tail -n 4 ; date Aug 19 13:45:08 DIR825 local7.debug syslog: [HB] HEARTBEAT TUNNEL 2001:14b8:100:218::2 sender 1282214708 cd8708b799e058175cd2a181ae074e37 Aug 19 13:46:08 DIR825 local7.debug syslog: [HB] HEARTBEAT TUNNEL 2001:14b8:100:218::2 sender 1282214768 2e8dc22bf5cd32c27dd8b211ee065b6e Aug 19 13:47:08 DIR825 local7.debug syslog: [HB] HEARTBEAT TUNNEL 2001:14b8:100:218::2 sender 1282214828 7d669f49583e65d93935c93bbbec12e4 Aug 19 13:48:08 DIR825 local7.debug syslog: [HB] HEARTBEAT TUNNEL 2001:14b8:100:218::2 sender 1282214888 a393bcdaa61b0e233ed1763f8cde6a72 Thu Aug 19 13:48:29 EEST 2010

Host B (outside world) pings Host A (my tunnel)

ping6 -n dir-825 -c 3 PING dir-825(2001:14b8:100:218::2) 56 data bytes --- dir-825 ping statistics --- 3 packets transmitted, 0 received, 100% packet loss, time 2001ms

Host A pings to outside world

root@DIR825:~# ping6 -c 3 ipv6.google.com ; date PING ipv6.google.com (2a00:1450:8001::93): 56 data bytes 64 bytes from 2a00:1450:8001::93: seq=0 ttl=53 time=66.087 ms 64 bytes from 2a00:1450:8001::93: seq=1 ttl=53 time=66.533 ms 64 bytes from 2a00:1450:8001::93: seq=2 ttl=53 time=66.309 ms --- ipv6.google.com ping statistics --- 3 packets transmitted, 3 packets received, 0% packet loss round-trip min/avg/max = 66.087/66.309/66.533 ms Thu Aug 19 13:50:24 EEST 2010

And now it works from Host B to Host A.

# ping6 -n dir-825 -c 3; date PING dir-825(2001:14b8:100:218::2) 56 data bytes 64 bytes from 2001:14b8:100:218::2: icmp_seq=1 ttl=63 time=49.3 ms 64 bytes from 2001:14b8:100:218::2: icmp_seq=2 ttl=63 time=48.7 ms 64 bytes from 2001:14b8:100:218::2: icmp_seq=3 ttl=63 time=48.7 ms --- dir-825 ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 2023ms rtt min/avg/max/mdev = 48.712/48.943/49.380/0.400 ms Thu Aug 19 13:50:36 EEST 2010

Any thoughts on this? // Joachim Wickman

Heartbeat and tunnel sleeps

Jeroen Massar SixXS Staff

on Thursday, 19 August 2010 15:11:13

Pinging a ipv6 host from my LAN activates the tunnel for a while and then it

falls a sleep again.

FAQ: My tunnel goes down after some idletime. My tunnelendpoint also is a NAT/Connection Tracker.

Heartbeat and tunnel sleeps

Shadow Hawkins on Friday, 20 August 2010 08:03:53

Ah, missed that one. I'm going for the notrack option. Thanks.

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