+## INTERFACES(5)
+# IFACE physical name of the interface being processed
+# METHOD method of the interface (e.g., static)\r
+# MODE start if run from ifup, stop if run from ifdown\r
+# PHASE as per MODE, but with finer granularity, distinguishing the pre-\r
+# up, post-up, pre-down and post-down phases.\r
+
+# optional arugument to set default gateway manually
+GATEWAY=$1