What about to put a firewall to block icmp from spectrum to restricted devices?

-vilius

> On 05 Aug 2016, at 12:14, Stephen Warne <[email protected]> wrote:
> 
> Hi David and Christian
> I think that Christian’s requirement might be that Spectrum never pings 
> devices to keep the security team off his back?
> I am not aware of any way to prevent spectrum attempting to ping after snmp 
> contact failures but would be very interested if you or others know a way of 
> changing this default behaviour.
> Regards
> Stephen.
>  
> From: David Game [mailto:[email protected]] 
> Sent: 05 August 2016 09:58
> To: spectrum <[email protected]>
> Subject: RE: [spectrum] SPECTRUM without Ping?
>  
> There’s an option in discovery to not ping before trying SNMP poll – works 
> OK. We have this policy on a couple of high-security customers and around 
> some of our own environment.
>  
> With regards to devices already discovered, SNMP polling is always first 
> anyway, so normal operation shouldn’t be affected.  The only thing is on a 
> “CONTACT LOST TO DEVICE” alarm, the “are you there yet?” pings every 60 
> seconds or so obviously won’t work, so it could be up to one or two poll 
> cycles before the alarm clears.
>  
> Dave
>  
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> David K. Game
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>  
> From: Christian Fieres [mailto:[email protected]] 
> Sent: 05 August 2016 09:31
> To: spectrum <[email protected]>
> Subject: [spectrum] SPECTRUM without Ping?
>  
> Hi all,
> 
> rumour has it our security policy leads to all our servers being prevented 
> from answering ICMP echo requests soon. As it so happens, we as network 
> management specialists have never been asked about implications of such a  
> decision. ;-) Hopefully it stays a rumour, but you never know - so I'd like 
> to be prepared.
> 
> Easy question, although I assume I know the answer: Has anybody ever tried to 
> come up with a (simple) solution to obsolete ICMP in regards to SPECTRUM 
> management? I am not talking about SPM tests to those servers as a 
> replacement, it is mandatory to continue using SNMPv3 for RFC2790 stuff et 
> cetera.
> 
> Best regards,
> Christian Fieres
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