ip

type Interface interface {
	// link
	RandomVethName() (string, error)
	RenameLink(curName, newName string) error
	SetupVethWithName(contVethName, hostVethName string, mtu int, hostNS ns.NetNS) (net.Interface, net.Interface, error)
	SetupVeth(contVethName string, mtu int, hostNS ns.NetNS) (net.Interface, net.Interface, error)
	DelLinkByName(ifName string) error
	DelLinkByNameAddr(ifName string) ([]*net.IPNet, error)
	GetVethPeerIfindex(ifName string) (netlink.Link, int, error)

	// forward
	EnableIP4Forward() error
	EnableIP6Forward() error
	EnableForward(ips []*current.IPConfig) error

	// masq
	SetupIPMasq(ipn *net.IPNet, chain string, comment string) error
	TeardownIPMasq(ipn *net.IPNet, chain string, comment string) error

	// route
	AddRoute(ipn *net.IPNet, gw net.IP, dev netlink.Link) error
	AddHostRoute(ipn *net.IPNet, gw net.IP, dev netlink.Link) error
	AddDefaultRoute(gw net.IP, dev netlink.Link) error
}