Comment 11 for bug 1258361

Also to note I know that some routers and gateways block inbound ICMP requests and responses. This may cause the ping to not reach some people. Are there any other methods to confirm connectivity to the internet for haguichi? My case in particular does not have this problem. But increasingly in the Untied States many ISP provides their customers with a modem / router hybrid. And from my experience some if not most of the gateways block both ICMP request and response packets from returning to the devices within the firewall.