Help me out here folks. It's been about 10 years since I touched WAN connections and BGP. My office has 2 fiber connection from separate ISPs, both give us a /27 range that we use for our on prem hosting (yes people still host on site). Currently, if the main ISP goes down, the IPs have to be changed over manually. (I didn't design this system, I inherited it). It is mostly scripted but it still leads to down time while DNS updates and seems like there is always some thing that doesn't play nice, but I digress. I know that it is possible to multi-home the connection thereby keeping the IPs the same if one of the ISP fails. My big question is with the IPs, do we need to get IPs from a 3rd party broker or can we use the IP registered with one ISP on the other.
And no currently moving to IPV6 is not an option. My hands are tied on that one.
Thanks in Advance
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