Side note: As of 1.4.0, NM allows randomizing the MAC address itself, too. Note that NetworkManager now supports RFC7217-based primary address generation starting with v1.2.0, so this feature isn't as important. NetworkManager on Linux: Recent versions of NetworkManager handle RA on their own, although the two values below have identical meanings to sysctl (2 = prefer privacy address, 1 = prefer main address): nmcli con modify ipv6.ip6-privacy 2
#CONVERT MAC ADDRESS TO IPV6 ADDRESS WINDOWS#
Note that Windows now supports hash-based primary address generation starting with Vista, so this feature isn't as critical. Netsh interface ipv6 set privacy state=disabled To enable/disable this feature: netsh interface ipv6 set privacy state=enabled Windows supports temporary addresses as of Windows XP SP2. These addresses are used for outgoing connections only – you still retain your MAC-based or RFC7217-based primary address for incoming connections. This feature (defined in RFC 4941) provides additional addresses which are generated randomly and rotated every few hours.
To check whether the feature is active, look for "addrgenmode stable_secret" in ip -d link, or the value "2" in sysctl _gen_mode. Setting the secret automatically activates this mode for all network interfaces. To make it persistent, it could be put in /etc/sysctl.d/nf or similar file: .stable_secret = 84a0:d5aa:52b0:4d35:k567:3aa6:7af5:474c This secret key must be stored in the .stable_secret sysctl. The secret key is a 128-bit hexadecimal string (shaped like an IPv6 address), which you can generate using: uuidgen | sed "s/-//g s/./:&/g s/^://" Linux kernel SLAAC supports RFC 7217 as of Linux v4.1.0 however, it must be manually activated by storing the secret seed via sysctl. To disable this feature and use traditional EUI-64 identifiers: slaac hwaddr If no prefixes match, it will still fall back to EUI-64 method.ĭhcpcd on Linux/BSD supports RFC 7217 using this option in /etc/nf: slaac private network file option, but appears to require you to explicitly list network prefixes for which this mode should be used: Systemd-networkd kind of supports RFC 7217 using this. Nmcli con modify "" ipv6.addr-gen-mode eui64 To enable or disable this feature: nmcli con modify "" ipv6.addr-gen-mode stable-privacy This feature is active by default in recent NM versions. NetworkManager on Linux supports RFC 7217 starting with NM v1.2.0, using the connection profile's UUID as part of the seed. This can also be done using netsh interface ipv6. Set-NetIPv6Protocol -RandomizeIdentifiers Disabled To enable/disable the feature: Set-NetIPv6Protocol -RandomizeIdentifiers Enabled To check if the feature is active, run a PowerShell command: Get-NetIPv6Protocol | fl RandomizeIdentifiers Windows beginning with Windows Vista uses a custom scheme. This kind of address is still static per network – the same OS on the same machine within the same IPv6 prefix should always generate the same suffix. In some operating systems, the primary interface identifier is no longer generated from MAC or EUI-64 – instead it is generated using a hash or random seed (usually according to RFC 7217) You can use both at the same time, if you want to.
On the dock, I still have a USB-C to Display port available as well as another HDMI port that isn't.
#CONVERT MAC ADDRESS TO IPV6 ADDRESS 1080P#
I have 3 external 22" 1080p monitors running with the lid of the laptop closed. Hello! I have a Dell Latitude 5410 laptop with a WD19 Dell docking station.