Change TTL value - Netgear Router

It it possible to change the TTL value on packets leaving the NetGear Router?
Model Nighthawk X6 R8000
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atlas_shudderedSr. Network EngineerCommented:
Change the TTL in what manner?
GeneratorAuthor Commented:
Since a lot of the IOT devices are being hacked and utilized for other purposes, I though that I could possibly change the TTL to one so that the packet from the IOT device would die at the first router it encountered.
Qlemo"Batchelor", Developer and EE Topic AdvisorCommented:
I've never heard of a way to set the TTL on a router.
A much more simple approach is to not provide a default gateway at such devices.
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GeneratorAuthor Commented:
I was hoping for additional comments or recommendations as to how to limit a data packet's TTL.
Qlemo"Batchelor", Developer and EE Topic AdvisorCommented:
Yes, IP header has a TTL value (with default of e.g. 127, depending on sender) we could use. If all IoT gear is connected to a single router (and no other device is), then you could define a route with a very high TTL. That will automatically reduce the IP header TTL by that amount, and if below 1 drop the packet (as there is no better route with lower TTL).

However, there is no way for a packet to leave your network if you remove the default gateway definition in the devices. They are then restricted to communicate locally only.

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GeneratorAuthor Commented:
OK - thanks..
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