networking - How does IPv6 subnetting work and how does it …
Officially, ::ffff:x.x.x.x is the format for an IPv6-mapped IPv4 address - there are of course also a number of transition mechanisms, namely 6to4 and its relative, 6rd, which map an IPv4 address into a global IPv6 one for the purposes of providing IPv6 access over IPv4 by creating an IPv6 prefix that is derived from the IPv4 address it's ...
IPv6 subnetting a /64 - what will break, and how to work around it?
2015年8月18日 · In such a subnetting configuration you will break SLAAC, so you need a DHCPv6 server to respond on each segment and static IPv6 addresses configured on all devices without DHCPv6 support. Bridging. Bridging is the other alternative. It essentially means you don't subnet but run your entire LAN as a single IPv6 segment with a /64 prefix.
How does VLAN subnetting work on IPv6? - Server Fault
2017年9月1日 · 8. VLANs are layer 2 constructs, not layer 3. You pass frames inside a VLAN regardless of layer 3 protocol by switching. For crossing VLAN boundaries, a router is required. Just like with IPv4, if you subnet an IPv6 network you need to grow the network mask/prefix, e.g. you can subnet a /56 network into 256 /64 networks (or just two /57 ...
subnet - IPv6 subnetting a dynamic /56 prefix - Server Fault
2017年6月13日 · 3. The way Mikrotik implemented it in RouterOS is that the router has a DHCP client that gets a /56 prefix from the ISP and puts it in an address pool. Then the router also has a DHCP server that hands out /64 prefixes from that address pool to individual interfaces. /ipv6 dhcp-client. add add-default-route=yes comment="delgate ISP-assigned ...
networking - How does IPv4 Subnetting Work? - Server Fault
2009年8月4日 · You can use IP subnets to break up larger networks for logical reasons (firewalling, etc), or physical need (smaller broadcast domains, etc). Simply put, though, IP routers use your IP subnets to make routing decisions. Understand how those decisions work, and you can understand how to plan IP subnets.
routing - Manually subnet an IPv6 Prefix Across Multiple MikroTik ...
2020年5月5日 · By this point you should have clients auto-address configuring IPv6 GUA addresses. If you spot any errors/ommissions, please let me know so I can update the documentation. Don't forget to spend some time configuring the IPv6 > Firewall and tightening-up security, or at least disable the IPv6 interfaces until you have the time to. Hope you found ...
linux - IPv6 Routing / Subnetting - Server Fault
2013年10月21日 · I'm not very familiar with IPv6 routing / subnetting - any help or tips for further troubleshooting is welcome! My Setup: XenServer 6.2. IPv6: 2a01:4f8:200:xxxx::2/112. ip -6 route: 2a01:4f8:200:xxxx::/112 dev xenbr0 proto kernel metric 256 mtu 1500 advmss 1440 hoplimit 0. fe80::1 dev xenbr0 metric 1024 mtu 1500 advmss 1440 hoplimit 0.
IPv6 - Are the last 16 bits of the network ID always reserved for ...
2023年5月10日 · It is possible you may get a smaller prefix, e.g. /32 or even smaller, and that would give you more bits for subnetting. You cannot advertise any IPv6 prefix larger than /48 on the public Internet, so prefixes advertised on the public …
IPv6 and /64 block allocation - Server Fault
2016年10月26日 · 4. It means that every LAN should get an IPv6 /64. Deviating from that will cause auto-configuration to break, and is therefore strongly discouraged. IPv6 allocations (and assignments) should be done in much larger blocks. In "Internet Registry Speak" an allocation is usually done to an ISP while an assignment is usually done to an end-user.
ipv6 - What does [::] mean as an ip address? Bracket colon colon ...
2012年11月2日 · 30. :: is the IPv6 "unspecified" address, equivalent to 0.0.0.0 - the [] is notation to separate the address from the port specifier. A program bound to :: will be given traffic for any actual IPv6 address assigned to the system - it may also receive IPv4 traffic too in the form of IPv6-mapped IPv4 addresses (::ffff:x.x.x.x) although this is ...