lixonet-ee/tinc/subnet-down.tmpl

#!/bin/ash
echo "Route down: \$SUBNET weight \$WEIGHT via \$NODE (\$REMOTEADDRESS:\$REMOTEPORT)"
nonMACChars=`echo \$SUBNET | tr -d "[:digit:]" | tr -d [:ABCDEFabcdef]`
macFile="/tmp/tinc_peer_mac_\$NODE"
if [ -z "\$nonMACChars" ]; then
  # This subnet is a MAC
  if test -f "\$macFile"; then
    rm \$macFile
  fi
else
  if echo "\$SUBNET" | grep -q -E ".+/32\$"; then
    # This subnet is likely an IP address, remove it from the ARP table
    address=`echo "\$SUBNET" | cut -d '/' -f 1`
    echo "Unmapping \$address <=> \$mac from ARP table"
    arp -d "\$address"
  fi
fi