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server C / vm02

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Oct 8th, 2016
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  1. lsm1:~ # tcpdump -i eth1 -vvv -s 0 port bootps
  2. tcpdump: listening on eth1, link-type EN10MB (Ethernet), capture size 65535 bytes
  3. 13:33:27.340371 IP (tos 0x10, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 328)
  4.     0.0.0.0.bootpc > 255.255.255.255.bootps: [udp sum ok] BOOTP/DHCP, Request from 52:54:00:bd:8a:6e (oui Unknown), length 300, xid 0x93b0122e, Flags [none] (0x0000)
  5.           Client-Ethernet-Address 52:54:00:bd:8a:6e (oui Unknown)
  6.           Vendor-rfc1048 Extensions
  7.             Magic Cookie 0x63825363
  8.             DHCP-Message Option 53, length 1: Discover
  9.             Client-ID Option 61, length 5: "vm02"
  10.             Vendor-Class Option 60, length 12: "dhcpcd 3.2.3"
  11.             Hostname Option 12, length 4: "vm02"
  12.             Parameter-Request Option 55, length 1:
  13.               Domain-Name-Server
  14.             END Option 255, length 0
  15.             PAD Option 0, length 0, occurs 26
  16. 13:33:27.340713 IP (tos 0xc0, ttl 64, id 33527, offset 0, flags [none], proto UDP (17), length 328)
  17.     lsm.bootps > vm02.private.bpcompass.com.bootpc: [bad udp cksum 0x4afe -> 0xc08f!] BOOTP/DHCP, Reply, length 300, xid 0x93b0122e, Flags [none] (0x0000)
  18.           Your-IP vm02.private.bpcompass.com
  19.           Server-IP lsm
  20.           Client-Ethernet-Address 52:54:00:bd:8a:6e (oui Unknown)
  21.           Vendor-rfc1048 Extensions
  22.             Magic Cookie 0x63825363
  23.             DHCP-Message Option 53, length 1: Offer
  24.             Server-ID Option 54, length 4: lsm
  25.             Lease-Time Option 51, length 4: 3600
  26.             RN Option 58, length 4: 1800
  27.             RB Option 59, length 4: 3150
  28.             Subnet-Mask Option 1, length 4: 255.255.255.0
  29.             BR Option 28, length 4: 192.168.100.255
  30.             Domain-Name-Server Option 6, length 4: lsm
  31.             Default-Gateway Option 3, length 4: lsm
  32.             END Option 255, length 0
  33.             PAD Option 0, length 0, occurs 8
  34. 13:33:27.342085 IP (tos 0x10, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 340)
  35.     0.0.0.0.bootpc > 255.255.255.255.bootps: [udp sum ok] BOOTP/DHCP, Request from 52:54:00:bd:8a:6e (oui Unknown), length 312, xid 0x93b0122e, Flags [none] (0x0000)
  36.           Client-Ethernet-Address 52:54:00:bd:8a:6e (oui Unknown)
  37.           Vendor-rfc1048 Extensions
  38.             Magic Cookie 0x63825363
  39.             DHCP-Message Option 53, length 1: Request
  40.             MSZ Option 57, length 2: 1500
  41.             Client-ID Option 61, length 5: "vm02"
  42.             Vendor-Class Option 60, length 12: "dhcpcd 3.2.3"
  43.             Requested-IP Option 50, length 4: vm02.private.bpcompass.com
  44.             Server-ID Option 54, length 4: lsm
  45.             Hostname Option 12, length 4: "vm02"
  46.             Parameter-Request Option 55, length 23:
  47.               RN, RB, Subnet-Mask, BR
  48.               Classless-Static-Route, Static-Route, Default-Gateway, Hostname
  49.               Option 119, Domain-Name, Domain-Name-Server, YD
  50.               YS, NTP, MTU, RP
  51.               Option 120, LPR-Server, LOG, Netbios-Name-Server
  52.               WDD, Netbios-Node, Netbios-Scope
  53.             END Option 255, length 0
  54. 13:33:27.391518 IP (tos 0xc0, ttl 64, id 33549, offset 0, flags [none], proto UDP (17), length 332)
  55.     lsm.bootps > vm02.private.bpcompass.com.bootpc: [bad udp cksum 0x4b02 -> 0x6b86!] BOOTP/DHCP, Reply, length 304, xid 0x93b0122e, Flags [none] (0x0000)
  56.           Your-IP vm02.private.bpcompass.com
  57.           Server-IP lsm
  58.           Client-Ethernet-Address 52:54:00:bd:8a:6e (oui Unknown)
  59.           Vendor-rfc1048 Extensions
  60.             Magic Cookie 0x63825363
  61.             DHCP-Message Option 53, length 1: ACK
  62.             Server-ID Option 54, length 4: lsm
  63.             Lease-Time Option 51, length 4: 3600
  64.             RN Option 58, length 4: 1800
  65.             RB Option 59, length 4: 3150
  66.             Subnet-Mask Option 1, length 4: 255.255.255.0
  67.             BR Option 28, length 4: 192.168.100.255
  68.             Domain-Name-Server Option 6, length 4: lsm
  69.             Hostname Option 12, length 4: "vm02"
  70.             Default-Gateway Option 3, length 4: lsm
  71.             NTP Option 42, length 4: lsm
  72.             END Option 255, length 0
  73. ^C
  74. 4 packets captured
  75. 4 packets received by filter
  76. 0 packets dropped by kernel
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