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netaudit: check if ipgw= is an ip address

--- a/rc/bin/netaudit

+++ b/rc/bin/netaudit

@@ -38,6 +38,16 @@

 	}

 	if not

 		echo '	we are in ipnet='^$ipnet

+	ipgw=`{ndb/ipquery sys $sysname ipgw | sed 's/^ipgw=//'}

+	if(~ $ipgw '' '::'){

+		echo '	we do not have an internet gateway, no ipgw= entry'

+	}

+	if not {

+		if(! ~ $ipgw *.*.*.* *:*:*:*:*:*:*:* *::*)

+			echo '	ipgw='$ipgw 'does not look like an ip address'

+		if not

+			echo '	ipgw='$ipgw 'looks ok'

+	}

 	dns=`{ndb/ipquery sys $sysname dns | sed 's/^dns=//'}

 	if(~ $dns '')

 		echo '	no dns= entry'

-- 

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