* FIX: now the script needs 2nd argument to fix IP address of LAN device

[lab.git] / iptables / setlan2wan.sh

diff --git a/iptables/setlan2wan.sh b/iptables/setlan2wan.sh
index ac9c617..5594949 100644 (file)
--- a/iptables/setlan2wan.sh
+++ b/iptables/setlan2wan.sh
@@ -12,16 +12,14 @@ set -x
 # PHASE  as per MODE, but with finer granularity, distinguishing the pre-
 #        up, post-up, pre-down and post-down phases.
 
 # PHASE  as per MODE, but with finer granularity, distinguishing the pre-
 #        up, post-up, pre-down and post-down phases.
 

-LANIF="${1:?"usage: $0 <LAN_device> "}"
-
-LANIP=`/sbin/ip addr show dev ${LANIF} | grep -w inet | tr -s ' ' | cut -d ' ' -f 3 | cut -d / -f 1`
-LANMASK=`/sbin/ip route show dev ${LANIF} | grep -w ${LANIP} | tr -s ' ' | cut -d ' ' -f 1`
+LANIF="${1:?"usage: $0 <LAN_device> <IPADDR> "}"
+LANIP="${2:?"usage: $0 <LAN_device> <IPADDR> "}"

 
 WANIP=`/sbin/ip addr show dev ${IFACE} | grep -w inet | tr -s ' ' | cut -d ' ' -f 3 | cut -d / -f 1`
 
 if [ "${PHASE}" = "pre-down" ]; then
     # delete rule and exit
 
 WANIP=`/sbin/ip addr show dev ${IFACE} | grep -w inet | tr -s ' ' | cut -d ' ' -f 3 | cut -d / -f 1`
 
 if [ "${PHASE}" = "pre-down" ]; then
     # delete rule and exit

-    /sbin/iptables -t nat -D PREROUTING -i ${LANIF} -s ${LANMASK} -d ${WANIP} -j DNAT --to-destination ${LANIP}
+    /sbin/iptables -t nat -D PREROUTING -i ${LANIF} -d ${WANIP} -j DNAT --to-destination ${LANIP}

     echo "remove rule for access to WAN device on router node from LAN clients"
     exit
 fi
     echo "remove rule for access to WAN device on router node from LAN clients"
     exit
 fi

@@ -31,7 +29,7 @@ fi
 (
 sleep 60
 
 (
 sleep 60
 

-/sbin/iptables -t nat -A PREROUTING -i ${LANIF} -s ${LANMASK} -d ${WANIP} -j DNAT --to-destination ${LANIP}
+/sbin/iptables -t nat -A PREROUTING -i ${LANIF} -d ${WANIP} -j DNAT --to-destination ${LANIP}

 echo "set rule for access to WAN device on router node from LAN clients"
 
 ) &
 echo "set rule for access to WAN device on router node from LAN clients"
 
 ) &