Great points and I sure agree.  Actually It's not me blocking ICMP - seems it's 
blocked outside of my control, not exactly sure where, 
but I can't ping between the machines - they are not on the same subnet - in 
fact I can't ping _any_ machine that is outside 
the subnet, so that why I believe ICMP is being blocked by the ISP - and could 
be an issue for other backupPC-ers.

I'm using IPv4 right now.  

So I've got the PingCMD essentially disabled, which allows backupPC to proceed, 
but it's not I think a good long
term solution for reasons mentioned on this thread.   

Btw thanks everyone for your replies - seems there is a great community here.  
I'm hoping to add a few new converts 
to join the fun here, if I can get things to work.    The next issue I'm facing 
is to get the BackupFilesOnly feature to work - 
will send that on a separate thread if I can't get it to work soon (right now 
it's backing up everything despite me specifying otherwise)






Re: [BackupPC-users] newbie: backupPC installed ok, but trouble with 1st backup
From: Arnold Krille <arnold@ar...> -    2012-11-23 21:23

Attachments: signature.asc     
On Thu, 22 Nov 2012 21:14:53 -0800 Matthew Grob <mgrob@...>
wrote:
> 
> THANKS.   I'm not sure I would have figured that one out.  ICMP is
> often blocked these days so I would think this may be a common issue
> for backupPC?

Which is an interesting future we face there.

With IPv6 you have to have ICMP enabled, otherwise you won't get far...

So, if you are blocking ICMP-Ping to "hide", think again and make your
systems secure so you don't have to hide. Its the future and the right
thing.


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