On Mon, 6 Jun 2016, Brian Kantor wrote:
(Please trim inclusions from previous messages) _______________________________________________ On Mon, Jun 06, 2016 at 07:49:45AM -0600, kd4cbm@charter.net wrote:
Is it possible that even though my gateway/public IP is registered, the packets aren't being sent out?
They are being sent. However, your public IP is returning a 'host unreachable' ICMP so apparently nothing is getting through to it:
07:15:03.233650 IP (tos 0xc0, ttl 46, id 19795, offset 0, flags [none], proto ICMP (1), length 576) 24.151.216.22 > 169.228.66.251: ICMP host 24.151.216.22 unreachable, length 556
I do not know why this is happening.
- Brian
I have a strong suspicion that my ISP (Charter Communications) has implemented some kind of filtering on my home cable-based (DOCSIS) internet connection. My reception of the RIP44d table broadcase has all but ceased. ip-ip tunnel communication to a friend's machine in a neighboring county only seems to work for a limited time, and only AFTER I initiate a connection from my end. It's as if they're using some kind of NAT or port knocking filter, and only opening the gate for incoming proto 4 traffic for a limited time after I initiate an outgoing request to a specific host.
With the FCCs declaration of the ISPs as 'Common Carriers' under the telecommunications laws, this and all other forms of port blocking or preferential traffic handling should have been eliminated. It's time again to make some noise in Washington.>