check host alive

[Andy Shellam (Mailing Lists)]

Andreas Ericsson wrote:
> No, that's the TTL in the response packet, which will be "defult TTL of
> host sending ICMP_ECHOREPLY" minus "hops between pinged host and self".
> The TTL on the outgoing packets are, by default, 64 on *BSD and Linux,
> 128 on Windows and HP switches/routers, 255 on Cisco and 3Com stuff...
>
> 64 is usually as high a TTL as one can stomach for most practical
> reasons (I reach Australia with 36 hops from Sweden).
>
> On Linux, the default TTL can be accessed through
> /proc/sys/net/ipv4/ip_default_ttl
>   
Ah great, thanks for the info :)


-------------------------------------------------------------------------
Take Surveys. Earn Cash. Influence the Future of IT
Join SourceForge.net's Techsay panel and you'll get the chance to share your
opinions on IT & business topics through brief surveys - and earn cash
http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
_______________________________________________
Nagios-users mailing list
Nagios-users at lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/nagios-users
::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. 
::: Messages without supporting info will risk being sent to /dev/null