It looks as if pings do come via the tunnel as well:
n1uro@gw:~$ sudo tcpdump -i tunl0 -vvvvv|grep ICMP
tcpdump: listening on tunl0, link-type RAW (Raw IP), capture size 262144
bytes
18:19:41.105553 IP (tos 0x0, ttl 64, id 63523, offset 0, flags [DF],
proto ICMP (1), length 84)
portland.n1uro.ampr.org >
ampr.org: ICMP echo request, id 23674, seq
1, length 64
18:19:41.107566 IP (tos 0x0, ttl 63, id 63523, offset 0, flags [DF],
proto ICMP (1), length 84)
portland.n1uro.ampr.org >
ampr.org: ICMP echo request, id 23674, seq
1, length 64
18:19:41.210652 IP (tos 0x0, ttl 62, id 0, offset 0, flags [DF], proto
ICMP (1), length 84)
ampr.org >
portland.n1uro.ampr.org: ICMP echo reply, id 23674, seq
1, length 64
18:19:41.212484 IP (tos 0x0, ttl 61, id 0, offset 0, flags [DF], proto
ICMP (1), length 84)
ampr.org >
portland.n1uro.ampr.org: ICMP echo reply, id 23674, seq
1, length 64
18:19:42.219244 IP (tos 0x0, ttl 62, id 0, offset 0, flags [DF], proto
ICMP (1), length 84)
ampr.org >
portland.n1uro.ampr.org: ICMP echo reply, id 23674, seq
2, length 64
18:19:42.221105 IP (tos 0x0, ttl 61, id 0, offset 0, flags [DF], proto
ICMP (1), length 84)
ampr.org >
portland.n1uro.ampr.org: ICMP echo reply, id 23674, seq
2, length 64
18:19:42.534924 IP (tos 0xc0, ttl 64, id 43001, offset 0, flags [none],
proto ICMP (1), length 99)
--
Men over 50 no longer fight at the drop of a hat. They've learned it's hard
Enough to hit a toilet, much less an agile younger fellow who is kicking
Their butt.
-----
73 de Brian N1URO
IPv6 Certified
SMTP:
n1uro-at-n1uro.ampr.org