Unverified Commit eab47aea authored by Kroese's avatar Kroese Committed by GitHub
Browse files

Check IP forwarding setting

parent fafba318

run/network.sh

+10 −5
Original line number Diff line number Diff line
@@ -33,11 +33,11 @@ configureDHCP() { 
  ip address add "${IP}" dev "${VM_NET_VLAN}"

  ip link set dev "${VM_NET_VLAN}" up



  #ip route flush dev "${VM_NET_DEV}"

  ip route flush dev "${VM_NET_DEV}"

  ip route flush dev "${VM_NET_VLAN}"



  ip route add "${IP}" dev "${VM_NET_VLAN}" metric 0

  #ip route add default via "${GATEWAY}"

  ip route add "${NETWORK}" dev "${VM_NET_VLAN}" metric 0

  ip route add default via "${GATEWAY}"



  echo "INFO: Acquiring an IP address via DHCP using MAC address ${VM_NET_MAC}..."
@@ -130,8 +130,13 @@ configureNAT () { 
    iptables -A POSTROUTING -t mangle -p udp --dport bootpc -j CHECKSUM --checksum-fill || true

  fi



  #Enable port forwarding flag

  [[ $(< /proc/sys/net/ipv4/ip_forward) -eq 0 ]] && sysctl -w net.ipv4.ip_forward=1

  #Check port forwarding flag

  if [[ $(< /proc/sys/net/ipv4/ip_forward) -eq 0 ]]; then

    if ! sysctl -w net.ipv4.ip_forward=1; then

      echo -n "ERROR: IP forwarding is disabled. Please add the following "

      echo "docker setting to your container: --sysctl net.ipv4.ip_forward=1" && exit 24

    fi

  fi



  # dnsmasq configuration:

  DNSMASQ_OPTS="$DNSMASQ_OPTS --dhcp-range=$VM_NET_IP,$VM_NET_IP --dhcp-host=$VM_NET_MAC,,$VM_NET_IP,$VM_NET_HOST,infinite --dhcp-option=option:netmask,255.255.255.0"