Claro will not allow you to use a personal router (fiber or otherwise) on their network as the primary connection interface to their network. In otherwords, you can't supply your own GPON/fTTx modem.
I am
not on fiber with Claro.
I´m using a
TP-Link TD-W8951ND ADSL+2 modem/router that I purchased and it works great. I turned off the Wi-Fi.
Connected to that I also have a
Linksys WRT1900ACS dual band gigabit Wi-Fi router using ExpressVPN.
I set the Linksys VPN router to start giving out IP addresses from 150 up.
The ExpressVPN allows you to choose which attached devices use the VPN and which go through direct.
I have a couple connections that I prefer to be directly connected to the TP-link modem/router.
ExpressVPN has a kill-switch that stops traffic if the VPN is down.
That´s good and bad.
To circumvent that, I installed a 2 port Ethernet switch to "my" computer only.
One side goes to the TP-link router direct, the other side goes through the VPN router.
This allow me to switch manually to non-VPN if and when the occasion arises.
Note of caution, DON´T forget what position you left the switch!!!!
One thing I do not like about installing EXpressedVPN software on the Linksys router was that ExpressVPN´s software took away some of the features of the Linksys router, such as the ability to use the eSATA port.
If I had known that, I would have bought the lower priced Linksys WRT1200AC router.
PS:
Beware, Claro will insist that it´s "your" router that´s bad if you have an Internet problem.
They will connect theirs for a few seconds to prove you are wrong.
I had to argued repeatedly with the tech to prove him wrong, they are stubborn.
I proved the problem was still there by switching back and forth between mine and there modem/router.
Be prepared to defend your router, go back to using theirs and make sure the problem is not your modem/router.
PPS:
I switched the Claro system from using their 10.0.0.1 IP settings to 192.168.0.1 for uniformity reasons. one of my devices could not be switched to the 10.0.0.1 IP range.