Date: Mon, 08 Jan 1996 07:27:57 -0800 From: "Jordan K. Hubbard" <jkh@time.cdrom.com> To: hackers@freebsd.org Subject: Using `ping' to diagnose network connections reasonable? Message-ID: <24751.821114877@time.cdrom.com>
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I'd like to add some code to sysinstall which will attempt to `diagnose' a link before accepting the configuration parameters, catching a lot of adapter misconfiguration and incorrect data errors that sysinstall misses now (to fail less gracefully later). My question is whether or not `ping' is a reasonable way to measure connectivity between your host and the gateway & dns machines. Is it reasonable to assume that if a host supports forwarding or DNS queries, it will also answer pings? What if you've got pings blocked somehow but allow DNS traffic through? I wouldn't want to flag a host as `unreachable' when in fact it would have worked fine for its intended purpose! That would be worse than no error checking at all. Thanks! Jordanhome | help
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