Topic '[Connectivity] icmp and an existing cisco vpn tunnel work, nothi' in forum 'Comcast HSI' - dslreports.com http://www.dslreports.com/forum/Connectivity-icmp-and-an-existing-cisco-vpn-tunnel-work-nothi-27960449 en Wed, 22 May 2013 23:41:26 EDT Wed, 22 May 2013 23:41:26 EDT [Connectivity] icmp and an existing cisco vpn tunnel work, nothi http://www.dslreports.com/forum/Connectivity-icmp-and-an-existing-cisco-vpn-tunnel-work-nothi-27960449
I can ping:

--- www.google.com ping statistics ---
5 packets transmitted, 5 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 60.728/62.206/64.758/1.362 ms

But http traffic doesn't work. A tcpdump shows the outbound SYN but no ACK. A traceroute (UDP) also appears to work.

So this seems to be something specifically affecting the TCP handshake.

My he.net IPv6 tunnel works.

It's like any new connection is being dropped. Anyone ever seen this before? It's really bizarre.

Rebooting the modem seems to have fixed it, but I'm wondering what the heck happened. Perhaps a bug in the Netgear D3 business class modem?
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"I drank what?" -Socrates]]> http://www.dslreports.com/forum/Connectivity-icmp-and-an-existing-cisco-vpn-tunnel-work-nothi-27960449 Wed, 30 Jan 2013 01:04:03 EDT