Community for discussing enterprise networks and the ensuing chaos that comes after inheriting or building one.
Very little tbh. Almost all networking hardware has sulported ipv6 for over a decade now. Its most.just rheir operations teams properly configuring them....
Which usually works out of the box and you have to do work to disable it. Doubt they'd need to do much more than inputting their ipv6 ranges into the system.
Routing tables are tiny in practice, most of the hardware requirements come from having to have concurrent connections shovelling packets around
Certain equipment need to support IPv6 in certain ways, but not necessarily be assigned a v6 address. Anything OSI layer-2 or layer-1 will not need to "explicitly" support v6, with exceptions. The network terminal (ONT/modem) usually needs to support v6, as they will generally have security features to prevent a subscriber from using random addresses they were not assigned, or using multiple.
At a minimum, core/edge routing supporting v6, premise equipment supporting v6, at least one upstream provider or transit provider that supports v6 in combination with diverse peering with v6, and ancillary servers to provide DHCPv6 and DNS6. Generally I would assume a provider adding v6 is going to do dual stack, which is great for usually not being NATed on at least one IP stack.
What's nice about v6 being so old.. is that a lot of the equipment they are using will support v6. Most consumer routers just need to get a dhcp reply with v6 with default settings.
We are deploying v6 to both brand new fiber customers and very legacy dsl customers without widespread equipment replacement now, at a US based ISP, but I don't work at Bell or have any idea of what other hurdles they may have that we don't.
For bell? A committee to discuss the feasibility of enabling IPv6. Along with an 18 month working group to make sure it doesn't mess with production or legacy systems, regional prefix delegation planning. Then a 2 year pilot program.
For the ISP I ran for a decade. Call my upstream ISP and asked for IPv6 to be enable on our transit links.
IPv6 has been supported on carrier gear since the late 1990s but hasn't been enabled because it wasn't needed.