Re: Issues with network connectivity and Net::Ping

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Re^2: Issues with network connectivity and Net::Ping by FloydATC (Deacon) on Jan 30, 2014 at 12:21 UTC
If I recall correctly, the ICMP protocol requires root access, this could be the reason he's trying to use TCP. I ended up using "/bin/ping" for my own network monitoring script and I believe this was one of the reasons. I also recall having problems with Net::Ping not timing out properly in some situations which can be a real problem when you have more than a handful of hosts to check. -- FloydATC Time flies when you don't know what you're doing	[reply]
Re^2: Issues with network connectivity and Net::Ping by Steve_BZ (Chaplain) on Jan 30, 2014 at 12:50 UTC
Hi vinoth.ree, I tried with udp and I still get a timeout. FloydATC is correct in supposing that I didn't use ICMP to avoid the need to be root. I'm thinking of going down the direct call route. What do you think? Like this my $p = `ping -c 1 www.google.com \| grep -i "bytes.*ms"` [download] And then I either get: `64 bytes from lhr14s21-in-f16.1e100.net (173.194.34.144): icmp_seq=1 t +tl=55 time=549 ms` [download] or .. `ping: unknown host www.google.com` [download] There is a slight delay. But it seems reliable. Any views? Regards Steve	[reply] [d/l] [select]
Re^3: Issues with network connectivity and Net::Ping by Corion (Patriarch) on Jan 30, 2014 at 13:03 UTC
Potentially, Net::Ping::External, together with the `'external'` protocol should accomplish the same.	[reply] [d/l]
Re^4: Issues with network connectivity and Net::Ping by Steve_BZ (Chaplain) on Jan 30, 2014 at 13:55 UTC
So Net::Ping ::External it is. At least it doesn't rub the delay in your face. 500 ms is indeed a long time and I'd be delighted to try faster methods of testing connectivity to the Internet. It doesn't need to be a specific server, I just used Google, because it's mostly available when you want it and even if you don't. Thanks Steve	[reply]
Re^3: Issues with network connectivity and Net::Ping by karlgoethebier (Abbot) on Jan 30, 2014 at 13:10 UTC
IMHO 549ms isn't slight. Regards, Karl ŤThe Crux of the Biscuit is the Apostropheť	[reply]
Re^4: Issues with network connectivity and Net::Ping by FloydATC (Deacon) on Jan 30, 2014 at 13:14 UTC
That depends on the carrier, doesn't it? -- FloydATC Time flies when you don't know what you're doing	[reply]
Re^5: Issues with network connectivity and Net::Ping by karlgoethebier (Abbot) on Jan 30, 2014 at 13:24 UTC
Re^6: Issues with network connectivity and Net::Ping by FloydATC (Deacon) on Jan 30, 2014 at 14:06 UTC