DHCPv4 returns a Node which succeeds if /perm/dhcp4/wire/lease.json contains a non-expired DHCPv4 lease.

DHCPv6 returns a Node which succeeds if /perm/dhcp6/wire/lease.json contains a non-expired DHCPv6 lease.

Link returns a Node which succeeds when the specified network interface is in state UP and RUNNING.

Ping4 returns a Node which succeeds when the specified address responds to an ICMPv4 ping.

Ping4Gateway returns a Node which succeeds when the default gateway responds to an ICMPv4 ping.

Ping6 returns a Node which succeeds when the specified address responds to an ICMPv6 ping.

Ping6Gateway returns a Node which succeeds when the default gateway responds to an ICMPv6 ping.

RouterAdvertisments returns a Node which succeeds if the specified interface obtained at least one address from IPv6 router advertisments.

TCP4 returns a Node which succeeds when the specified address accepts a TCPv4 connection.

TCP6 returns a Node which succeeds when the specified address accepts a TCPv6 connection.