Sunday, August 5, 2018

Issues with Frontier Business Fiber and NAT for public IPs

Frontier recently trenched fiber to my business and as soon as I could order it I signed up for their 100/100 Mbps service with a /28 of public IPs. After several days of troubleshooting they finally got the static IPs working, but even when I'm using on the public IPs on the Cisco 4331 internet router I see NAT entries being generated in the Arris NVG448BQ. There's a limit of 8,192 translations which I've hit on several occasions. This requires someone to power cycle their modem. After weeks of working with their technical support, they claim that this is the only way their service is offered. I can see NAT is enabled in the web interface of the Arris modem, but there's nowhere to turn it off. Has anyone else experienced this? Did you find a way around it? If there isn't a way around it why would they possibly have their network equipment setup this way?



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