On Wednesday 17 August 2005 03:49, Nadeem M. Khan wrote:
I am able to surf, but not ping their default gateway. Neither through Linux, nor Windows. This isn't much of a problem, but it makes troubleshooting difficult. I used to think they've blocked ICMP, but it seems other Sify users are able to ping fine.
Depends on your particular CTO. Some are stupid and don't want RFC 1122 complaince and thus block ICMP. ICMP isn't bad. It's very important for network debugging. And what use is blocking ICMP on the gateway? A gateway can't be hidden. For that matter any computer connected to a network cannot be blocked. It's presence can be very well detected using SYN / ACK or such attacks. Look up nmap ;)
Me thinks the Sify CTO wants to hide downtime. Since you can't regularly ping the gateway, you can't easily detect whether its up or not at any given point of time. So when you can't connect and call up your CTO and ask why you can't login, he will just say there is some config problem on your side :P