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May 24th, 2025
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  1. # Generated by iptables-save v1.8.7 on Sat May 24 19:20:40 2025
  2. *mangle
  3. :PREROUTING ACCEPT [0:0]
  4. :INPUT ACCEPT [0:0]
  5. :FORWARD ACCEPT [0:0]
  6. :OUTPUT ACCEPT [0:0]
  7. :POSTROUTING ACCEPT [0:0]
  8. :LIBVIRT_PRT - [0:0]
  9. -A POSTROUTING -j LIBVIRT_PRT
  10. -A LIBVIRT_PRT -o virbr0 -p udp -m udp --dport 68 -j CHECKSUM --checksum-fill
  11. COMMIT
  12. # Completed on Sat May 24 19:20:40 2025
  13. # Generated by iptables-save v1.8.7 on Sat May 24 19:20:40 2025
  14. *filter
  15. :INPUT ACCEPT [0:0]
  16. :FORWARD ACCEPT [0:0]
  17. :OUTPUT ACCEPT [0:0]
  18. :LIBVIRT_FWI - [0:0]
  19. :LIBVIRT_FWO - [0:0]
  20. :LIBVIRT_FWX - [0:0]
  21. :LIBVIRT_INP - [0:0]
  22. :LIBVIRT_OUT - [0:0]
  23. -A INPUT -j LIBVIRT_INP
  24. -A FORWARD -j LIBVIRT_FWX
  25. -A FORWARD -j LIBVIRT_FWI
  26. -A FORWARD -j LIBVIRT_FWO
  27. -A OUTPUT -j LIBVIRT_OUT
  28. -A LIBVIRT_FWI -d 192.168.122.0/24 -o virbr0 -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
  29. -A LIBVIRT_FWI -o virbr0 -j REJECT --reject-with icmp-port-unreachable
  30. -A LIBVIRT_FWO -s 192.168.122.0/24 -i virbr0 -j ACCEPT
  31. -A LIBVIRT_FWO -i virbr0 -j REJECT --reject-with icmp-port-unreachable
  32. -A LIBVIRT_FWX -i virbr0 -o virbr0 -j ACCEPT
  33. -A LIBVIRT_INP -i virbr0 -p udp -m udp --dport 53 -j ACCEPT
  34. -A LIBVIRT_INP -i virbr0 -p tcp -m tcp --dport 53 -j ACCEPT
  35. -A LIBVIRT_INP -i virbr0 -p udp -m udp --dport 67 -j ACCEPT
  36. -A LIBVIRT_INP -i virbr0 -p tcp -m tcp --dport 67 -j ACCEPT
  37. -A LIBVIRT_OUT -o virbr0 -p udp -m udp --dport 53 -j ACCEPT
  38. -A LIBVIRT_OUT -o virbr0 -p tcp -m tcp --dport 53 -j ACCEPT
  39. -A LIBVIRT_OUT -o virbr0 -p udp -m udp --dport 68 -j ACCEPT
  40. -A LIBVIRT_OUT -o virbr0 -p tcp -m tcp --dport 68 -j ACCEPT
  41. COMMIT
  42. # Completed on Sat May 24 19:20:40 2025
  43. # Generated by iptables-save v1.8.7 on Sat May 24 19:20:40 2025
  44. *nat
  45. :PREROUTING ACCEPT [0:0]
  46. :INPUT ACCEPT [0:0]
  47. :OUTPUT ACCEPT [0:0]
  48. :POSTROUTING ACCEPT [0:0]
  49. :LIBVIRT_PRT - [0:0]
  50. -A POSTROUTING -j LIBVIRT_PRT
  51. -A LIBVIRT_PRT -s 192.168.122.0/24 -d 224.0.0.0/24 -j RETURN
  52. -A LIBVIRT_PRT -s 192.168.122.0/24 -d 255.255.255.255/32 -j RETURN
  53. -A LIBVIRT_PRT -s 192.168.122.0/24 ! -d 192.168.122.0/24 -p tcp -j MASQUERADE --to-ports 1024-65535
  54. -A LIBVIRT_PRT -s 192.168.122.0/24 ! -d 192.168.122.0/24 -p udp -j MASQUERADE --to-ports 1024-65535
  55. -A LIBVIRT_PRT -s 192.168.122.0/24 ! -d 192.168.122.0/24 -j MASQUERADE
  56. COMMIT
  57. # Completed on Sat May 24 19:20:40 2025
  58.  
  59.  
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