tsaddr

Documentation

Overview

Package tsaddr handles Tailscale-specific IPs and ranges.

Index

• func CGNATRange() netaddr.IPPrefix
• func ChromeOSVMRange() netaddr.IPPrefix
• func IsTailscaleIP(ip netaddr.IP) bool
• func Tailscale4To6(ipv4 netaddr.IP) netaddr.IP
• func Tailscale4To6Range() netaddr.IPPrefix
• func TailscaleServiceIP() netaddr.IP
• func TailscaleULARange() netaddr.IPPrefix

Functions

func CGNATRange

func CGNATRange() netaddr.IPPrefix

CGNATRange returns the Carrier Grade NAT address range that is the superset range that Tailscale assigns out of. See https://tailscale.com/kb/1015/100.x-addresses. Note that Tailscale does not assign out of the ChromeOSVMRange.

func ChromeOSVMRange

func ChromeOSVMRange() netaddr.IPPrefix

ChromeOSVMRange returns the subset of the CGNAT IPv4 range used by ChromeOS to interconnect the host OS to containers and VMs. We avoid allocating Tailscale IPs from it, to avoid conflicts.

func IsTailscaleIP

func IsTailscaleIP(ip netaddr.IP) bool

IsTailscaleIP reports whether ip is an IP address in a range that Tailscale assigns from.

func Tailscale4To6

func Tailscale4To6(ipv4 netaddr.IP) netaddr.IP

Tailscale4To6 returns a Tailscale IPv6 address that maps 1:1 to the given Tailscale IPv4 address. Returns a zero IP if ipv4 isn't a Tailscale IPv4 address.

func Tailscale4To6Range

func Tailscale4To6Range() netaddr.IPPrefix

Tailscale4To6Range returns the subset of TailscaleULARange used for auto-translated Tailscale ipv4 addresses.

func TailscaleServiceIP

func TailscaleServiceIP() netaddr.IP

TailscaleServiceIP returns the listen address of services provided by Tailscale itself such as the Magic DNS proxy.

func TailscaleULARange

func TailscaleULARange() netaddr.IPPrefix

TailscaleULARange returns the IPv6 Unique Local Address range that is the superset range that Tailscale assigns out of.