IC_Current wrote: Nothing, because you cannot install two routers in one network, because advanced network services will stop working, e.g. you will not play games on the console, VPN will have problems or VoIP will not work together.
crap - everything works.
IC_Current wrote: VoIP works depending on the operator and the possibility of forcing the client to send a periodic packet maintaining the open NAT session.
Multiplayer games only work if you add the console to DMZ on both NAT routers. Unless the game uses a proxy.
Even more crap - Multiple NAT works on all routers.
You don't need a DMZ.
Of course, there are exceptions, such as PS3 if I remember correctly Sony "badly implemented" NAT support in the device and did not work with some routers without additional redirections.
Everything behind multiple NAT works by default.
IC_Current wrote: This is of course a fact, but a user who asks for a router and does not know that he must have an ONT can handle the configuration of multiple NAT so that everything works as it should?
Another load of rubbish - in my 25-year career I have not encountered a router with a network router that would not cope with multiple nat.
Every ONT router I had in my hands also dealt with multiple NAT - it's not a network freak, but normal operation.
Of course, each operator can impose restrictions within its network causing the above-mentioned inactivity, however, without restrictions in the network ALL the above-mentioned services work properly. Buddy @IC_Current, please, if you have such nonsense to write out, delete the description of an IT network specialist in your nobody, because it stuns the eyes with ignorance.
I'm sorry but I had to react sharply if someone thinks he is a specialist and writes such nonsense.
Network specialist / administrator with 25 years of experience.
Regards in peace.
Added after 5 [hours] 26 [minutes]: mick1 wrote: I don't know if you are trying to defend your mind now, if you don't know how opening sessions on "random" ports works and what the handshake does, but let's establish that you are right, and I am just checking one of the systems for double NAT (because otherwise there is no way) via vpn
Managed to?
I don't see any obstacles for it not to work.
Dynamic? What a problem, after all, NAT does a dynamic translation "imperceptible" to the recipient.