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csu3_am335x
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EVSE
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GPL
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plc-utils.LNX.2.1.20
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source
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patches
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arp-setup.sh

arp-setup.sh 1.5 KB
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  1. #!/bin/bash
    2. 

  2. # file: arp-setup.sh
    3. 

  3. 

  4. # ====================================================================
    5. 

  5. # environment;
    6. 

  6. # --------------------------------------------------------------------
    7. 

  7. 

  8. . arp-token.sh
    9. 

  9. 

  10. # ====================================================================
    11. 

  11. # disable loopback/WAN interfaces;
    12. 

  12. # --------------------------------------------------------------------
    13. 

  13. 

  14. ifconfig lo down
    15. 

  15. ifconfig ${IF0} down
    16. 

  16. 

  17. # ====================================================================
    18. 

  18. # enable send-to-self feature;
    19. 

  19. # --------------------------------------------------------------------
    20. 

  20. 

  21. echo 1 > /proc/sys/net/ipv4/conf/${IF1}/loop
    22. 

  22. echo 1 > /proc/sys/net/ipv4/conf/${IF2}/loop
    23. 

  23. 

  24. # ====================================================================
    25. 

  25. # disable arp on each device;
    26. 

  26. # --------------------------------------------------------------------
    27. 

  27. 

  28. ip link set dev ${IF1} arp off
    29. 

  29. ip link set dev ${IF2} arp off
    30. 

  30. 

  31. # ====================================================================
    32. 

  32. # discard routes;
    33. 

  33. # --------------------------------------------------------------------
    34. 

  34. 

  35. route del -net ${NET1} netmask 255.255.255.0 dev ${IF1}  
    36. 

  36. route del -net ${NET2} netmask 255.255.255.0 dev ${IF2}  
    37. 

  37. 

  38. # ====================================================================
    39. 

  39. # update arp neighbor cache;
    40. 

  40. # --------------------------------------------------------------------
    41. 

  41. 

  42. ip neighbor add dev ${IF1} to ${IP2} lladdr ${NIC2} nud permanent
    43. 

  43. ip neighbor add dev ${IF2} to ${IP1} lladdr ${NIC1} nud permanent
    44. 

  44. ip neighbor show
    45. 

  45.