![]() So on the other side (Server) you can safely assume, that all IPs which use the same prefix according to /56 come from the same network. Usually all ISPs allow routers to request a /56. Many routers default to /64 if not configured otherwise. If you see a /64 on your router this does not mean, your ISP is nuts. And internally on our network, you use a /64, so you can split up the /56 into 256 distinct networks for your own needs. 4 Answers Sorted by: 12 Generally, you really should not remove the link-local address, as it is required for core IPv6 features to work, such as Neighbour Discovery (i.e.Additionally, we’ll use other utilities like ifdata to get the same information. We’ll look at commands like ip, nmcli, and ifconfig and how to use them to get the netmask information. We’ll define netmask, subnets (subnetworks), and how to find netmask information in our Linux system. Dynamic allocations (from the ISP to your router), usually give you a /56. Overview In this tutorial, we’ll talk about netmask."Official" (static) allocations from your ISP should give you a /48.This leaves 16 bits for subnets to form a /64 (in IPv6, networks cannot go beyond /64, so this should always be the biggest address mask you can see on properly IPv6 enabled networks).Īssigning prefixes longer than /56 is strongly discouraged, so yourĬhoices are: If you want a simple addressing plan use a /48 for each For example on ProxMox I map the IPv6 of a VM based on the internal IPv4 of the VM, which gives addresses like:įd01:7e57::192.168.0.1/64 provided your IPv6 prefix is /64.įd12:3456:789a in the example above is from the private IPv6 area fd00::/8, which is similar to a private net on IPv4 like 10.0.0.0/8. You can even use IPv4 addresses to improve readability. Rc ifupdown 0.8.36 amd64 high level tools to configure network interfacesĭescription: Debian GNU/Linux 12 (bookworm) ![]() ||/ Name Version Architecture Description |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend No need for ifdown.ĭesired=Unknown/Install/Remove/Purge/Hold And it works.Īpply without interruption with: ifup eth0 But you can just give as many address lines you like.
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