Added option nclient4.WithHWAddr

This option allows to receive answers DHCP with arbitrary client addresses

Signed-off-by: Dmitrii Okunev <xaionaro@fb.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/dhcpv4/nclient4/client.go b/dhcpv4/nclient4/client.go
index 17af89c..a1596a5 100644
--- a/dhcpv4/nclient4/client.go
+++ b/dhcpv4/nclient4/client.go
@@ -362,6 +362,15 @@ func WithUnicast(srcAddr *net.UDPAddr) ClientOpt {
 	}
 }
 
+// WithHWAddr tells to the Client to receive messages destinated to selected
+// hardware address
+func WithHWAddr(hwAddr net.HardwareAddr) ClientOpt {
+	return func(c *Client) (err error) {
+		c.ifaceHWAddr = hwAddr
+		return
+	}
+}
+
 func withBufferCap(n int) ClientOpt {
 	return func(c *Client) (err error) {
 		c.bufferCap = n