2/14/2024 0 Comments Fortigate f40– In an IPv6 address, the first four fields are the network, the last four fields the device. Just dropping all ICMP at the border won’t do the trick. – ICMPv6 is crucial to connection health. (This might not be true in Enterprise networks where you may decide to either use public addresses or ULAs with NPT, Network Prefix Translation.) All your clients will have public addresses. You can have more than one /64 on one VLAN and clients can have more than one IPv6 address. Subnetting further really isn’t a thing, with the exception of /127 point to point links, done for security reasons. – All local networks (subnets) have a /64 prefix length. (A /48 is the typical Enterprise site prefix size.) – Your “site” (home, office) will receive a /64 or /60 prefix from Comcast (residential), or as large as /56 (business). This post does not apply to Enterprise networks, though I mention Enterprise for reference here and there. There are just a few things to remember for home / office use if you are coming from an IPv4 world. I have given references at the end of the post. This post pulls together information already available elsewhere.
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