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  1. OmanDataPark
  2.  
  3. root
  4. ^PHN0k*M8886LKQ
  5. _mZ4bVxU
  6.  
  7.  
  8. [root@odp-cloud-09 PROD ~#] tcpdump -i venet0 host 192.168.1.22
  9. tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
  10. listening on venet0, link-type LINUX_SLL (Linux cooked), capture size 262144 bytes
  11. 14:06:34.772582 IP 192.168.1.20 > 192.168.1.22: ICMP echo request, id 4929, seq 95, length 64
  12. 14:06:34.772612 IP 192.168.1.22 > 192.168.1.20: ICMP echo reply, id 4929, seq 95, length 64
  13. 14:06:35.772600 IP 192.168.1.20 > 192.168.1.22: ICMP echo request, id 4929, seq 96, length 64
  14. 14:06:35.772625 IP 192.168.1.22 > 192.168.1.20: ICMP echo reply, id 4929, seq 96, length 64
  15. 14:06:35.777985 IP odp-cloud-09.odp-cloud.com > 192.168.1.22: ICMP host 192.168.1.20 unreachable, length 92
  16. 14:06:35.777992 IP odp-cloud-09.odp-cloud.com > 192.168.1.22: ICMP host 192.168.1.20 unreachable, length 92
  17. 14:06:35.777995 IP odp-cloud-09.odp-cloud.com > 192.168.1.22: ICMP host 192.168.1.20 unreachable, length 92
  18. 14:06:35.777998 IP odp-cloud-09.odp-cloud.com > 192.168.1.22: ICMP host 192.168.1.20 unreachable, length 92
  19. 14:06:36.772561 IP 192.168.1.20 > 192.168.1.22: ICMP echo request, id 4929, seq 97, length 64
  20. 14:06:36.772583 IP 192.168.1.22 > 192.168.1.20: ICMP echo reply, id 4929, seq 97, length 64
  21.  
  22.  
  23. [root@odp-cloud-07 PROD ~#] tcpdump -i em2.1289 host 192.168.1.20
  24. tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
  25. listening on em2.1289, link-type EN10MB (Ethernet), capture size 262144 bytes
  26. 14:29:55.012928 ARP, Request who-has 192.168.1.20 tell 192.168.0.15, length 46
  27. 14:29:57.010019 ARP, Request who-has 192.168.1.20 tell 192.168.0.15, length 46
  28. 14:29:58.010963 ARP, Request who-has 192.168.1.20 tell 192.168.0.15, length 46
  29. 14:29:59.012983 ARP, Request who-has 192.168.1.20 tell 192.168.0.15, length 46
  30. 14:30:01.010058 ARP, Request who-has 192.168.1.20 tell 192.168.0.15, length 46
  31. 14:30:02.011003 ARP, Request who-has 192.168.1.20 tell 192.168.0.15, length 46
  32. 14:30:03.013011 ARP, Request who-has 192.168.1.20 tell 192.168.0.15, length 46
  33. 14:30:05.010080 ARP, Request who-has 192.168.1.20 tell 192.168.0.15, length 46
  34. ^C
  35. 8 packets captured
  36. 8 packets received by filter
  37. 0 packets dropped by kernel
  38. [root@odp-cloud-07 PROD ~#]
  39.  
  40.  
  41.  
  42. [root@odp-cloud-07 PROD ~#] arp -an | grep 192.168.1.20
  43. ? (192.168.1.20) at 00:1c:42:dd:cc:36 [ether] on vme42ddcc36
  44. ? (192.168.1.20) at <incomplete> on em2.1289
  45. ? (192.168.1.20) at 18:66:da:a1:95:df [ether] on bond0.1248
  46. ? (192.168.1.20) at <from_interface> PERM PUB on bond0.1248
  47. ? (192.168.1.20) at <from_interface> PERM PUB on bond0
  48. ? (192.168.1.20) at <from_interface> PERM PUB on em1
  49. ? (192.168.1.20) at <from_interface> PERM PUB on br-bond0.90
  50. [root@odp-cloud-07 PROD ~#] arp -an 192.168.1.21
  51. ? (192.168.1.21) at 00:1c:42:a0:91:06 [ether] on vme42a09106
  52. ? (192.168.1.21) at <from_interface> PERM PUB on bond0.1248
  53. ? (192.168.1.21) at <from_interface> PERM PUB on bond0
  54. ? (192.168.1.21) at <from_interface> PERM PUB on em1
  55. ? (192.168.1.21) at <from_interface> PERM PUB on br-bond0.90
  56. [root@odp-cloud-07 PROD ~#]
  57.  
  58.  
  59.  
  60. I add arp entry for 192.168.1.20 on HOST 7 because there were no arp replies
  61.  
  62. Now the HOST7 itself doesn't know where to forward traffic.
  63.  
  64.  
  65. ip neigh add proxy 192.168.1.20 dev em2.1289
  66.  
  67. Need to solve the IP PROXY conflict
  68. [root@odp-cloud-07 PROD ~#] arp -an | grep 18:66:da:a1:95:df
  69. ? (192.168.0.212) at 18:66:da:a1:95:df [ether] on bond0.1248 <-----
  70. ? (10.7.1.16) at 18:66:da:a1:95:df [ether] on bond0.1248
  71. ? (192.168.1.20) at 18:66:da:a1:95:df [ether] on bond0.1248 <---------
  72. [root@odp-cloud-07 PROD ~#]
  73.  
  74. [root@odp-cloud-07 PROD ~#] arp -an | grep 192.168.1.20
  75. ? (192.168.1.20) at 00:1c:42:dd:cc:36 [ether] on vme42ddcc36
  76. ? (192.168.1.20) at <incomplete> on em2.1289
  77. ? (192.168.1.20) at 18:66:da:a1:95:df [ether] on bond0.1248
  78. ? (192.168.1.20) at <from_interface> PERM PUB on em2.1289
  79. ? (192.168.1.20) at <from_interface> PERM PUB on bond0.1248
  80. ? (192.168.1.20) at <from_interface> PERM PUB on bond0
  81. ? (192.168.1.20) at <from_interface> PERM PUB on em1
  82. ? (192.168.1.20) at <from_interface> PERM PUB on br-bond0.90
  83. [root@odp-cloud-07 PROD ~#]
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