Subj : What happens if a power supply lowers the voltage by 90%
To   : Tony Langdon
From : Michiel van der Vlist
Date : Fri Jan 13 2017 01:00:54

Hello Tony,

On Friday January 13 2017 07:37, you wrote to me:

 MvV>> My previous router (Linksys WRT54G: runing OpenWrt) had that
 MvV>> option. My present modem/router only has the option of
 MvV>> allowing/disallowing it for all devices on the LAN. I see no
 MvV>> harm in switching it on.

I see, this may be read in a way I did not intend. I was specifically refering to PING here. For PING, I can only allow or disallow it for the entire LAN.

 TL> My IPv6 firewall is permanently on.  I have to manually turn it off
 TL> for any device I want to allow inbound access to, or I can just open
 TL> specific TCP or UDP ports per device

I can allow inbound access to a given destination for a single port or a range of ports. TCP, UDP or both.  I can not selectively open it for other protocols than TCP or UDP.

 TL> (don't have the option to open a port for the entire network).

I can do that by specifying :: as the destination address.

 TL> Sometimes inconvenient, but a sensible and secure default.

Sure.


Cheers, Michiel

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