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- lsm1:~ # tcpdump -i eth1 -vvv -s 0 port bootps
- tcpdump: listening on eth1, link-type EN10MB (Ethernet), capture size 65535 bytes
- 13:34:47.335949 IP (tos 0x10, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 328)
- 0.0.0.0.bootpc > 255.255.255.255.bootps: [udp sum ok] BOOTP/DHCP, Request from 52:54:00:be:0b:ab (oui Unknown), length 300, xid 0xe5846238, Flags [none] (0x0000)
- Client-Ethernet-Address 52:54:00:be:0b:ab (oui Unknown)
- Vendor-rfc1048 Extensions
- Magic Cookie 0x63825363
- DHCP-Message Option 53, length 1: Request
- Client-ID Option 61, length 5: "vm03"
- Requested-IP Option 50, length 4: 192.168.100.124
- Hostname Option 12, length 4: "vm03"
- Parameter-Request Option 55, length 28:
- RN, RB, Subnet-Mask, BR
- MTU, Classless-Static-Route, Static-Route, Default-Gateway
- Hostname, Option 119, Domain-Name, Domain-Name-Server
- YD, YS, NTP, RP
- LPR-Server, LOG, Option 85, Option 86
- Option 87, Option 120, Netbios-Name-Server, WDD
- Netbios-Node, Netbios-Scope, PRTR, MDHCP
- MSZ Option 57, length 2: 1500
- END Option 255, length 0
- PAD Option 0, length 0, occurs 3
- 13:34:47.336306 IP (tos 0xc0, ttl 64, id 13689, offset 0, flags [none], proto UDP (17), length 328)
- lsm.bootps > 255.255.255.255.bootpc: [bad udp cksum 0x25ef -> 0x7c5b!] BOOTP/DHCP, Reply, length 300, xid 0xe5846238, Flags [Broadcast] (0x8000)
- Client-Ethernet-Address 52:54:00:be:0b:ab (oui Unknown)
- Vendor-rfc1048 Extensions
- Magic Cookie 0x63825363
- DHCP-Message Option 53, length 1: NACK
- Server-ID Option 54, length 4: lsm
- MSG Option 56, length 22: "static lease available"
- END Option 255, length 0
- PAD Option 0, length 0, occurs 26
- 13:34:48.336930 IP (tos 0x10, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 328)
- 0.0.0.0.bootpc > 255.255.255.255.bootps: [udp sum ok] BOOTP/DHCP, Request from 52:54:00:be:0b:ab (oui Unknown), length 300, xid 0xe6846238, Flags [none] (0x0000)
- Client-Ethernet-Address 52:54:00:be:0b:ab (oui Unknown)
- Vendor-rfc1048 Extensions
- Magic Cookie 0x63825363
- DHCP-Message Option 53, length 1: Discover
- Client-ID Option 61, length 5: "vm03"
- Parameter-Request Option 55, length 28:
- RN, RB, Subnet-Mask, BR
- MTU, Classless-Static-Route, Static-Route, Default-Gateway
- Hostname, Option 119, Domain-Name, Domain-Name-Server
- YD, YS, NTP, RP
- LPR-Server, LOG, Option 85, Option 86
- Option 87, Option 120, Netbios-Name-Server, WDD
- Netbios-Node, Netbios-Scope, PRTR, MDHCP
- MSZ Option 57, length 2: 1500
- END Option 255, length 0
- PAD Option 0, length 0, occurs 15
- 13:34:48.337241 IP (tos 0xc0, ttl 64, id 22536, offset 0, flags [none], proto UDP (17), length 328)
- lsm.bootps > 192.168.100.124.bootpc: [bad udp cksum 0x4b14 -> 0xedf8!] BOOTP/DHCP, Reply, length 300, xid 0xe6846238, Flags [none] (0x0000)
- Your-IP 192.168.100.124
- Server-IP lsm
- Client-Ethernet-Address 52:54:00:be:0b:ab (oui Unknown)
- Vendor-rfc1048 Extensions
- Magic Cookie 0x63825363
- DHCP-Message Option 53, length 1: Offer
- Server-ID Option 54, length 4: lsm
- Lease-Time Option 51, length 4: 3600
- RN Option 58, length 4: 1800
- RB Option 59, length 4: 3150
- Subnet-Mask Option 1, length 4: 255.255.255.0
- BR Option 28, length 4: 192.168.100.255
- Domain-Name-Server Option 6, length 4: lsm
- Default-Gateway Option 3, length 4: lsm
- NTP Option 42, length 4: lsm
- END Option 255, length 0
- PAD Option 0, length 0, occurs 2
- 13:34:48.337673 IP (tos 0x10, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 337)
- 0.0.0.0.bootpc > 255.255.255.255.bootps: [udp sum ok] BOOTP/DHCP, Request from 52:54:00:be:0b:ab (oui Unknown), length 309, xid 0xe7846238, Flags [none] (0x0000)
- Client-Ethernet-Address 52:54:00:be:0b:ab (oui Unknown)
- Vendor-rfc1048 Extensions
- Magic Cookie 0x63825363
- DHCP-Message Option 53, length 1: Request
- Client-ID Option 61, length 5: "vm03"
- Server-ID Option 54, length 4: lsm
- Requested-IP Option 50, length 4: 192.168.100.124
- Hostname Option 12, length 4: "vm03"
- Parameter-Request Option 55, length 28:
- RN, RB, Subnet-Mask, BR
- MTU, Classless-Static-Route, Static-Route, Default-Gateway
- Hostname, Option 119, Domain-Name, Domain-Name-Server
- YD, YS, NTP, RP
- LPR-Server, LOG, Option 85, Option 86
- Option 87, Option 120, Netbios-Name-Server, WDD
- Netbios-Node, Netbios-Scope, PRTR, MDHCP
- MSZ Option 57, length 2: 1500
- Lease-Time Option 51, length 4: 3600
- END Option 255, length 0
- 13:34:48.401236 IP (tos 0xc0, ttl 64, id 22543, offset 0, flags [none], proto UDP (17), length 332)
- lsm.bootps > 192.168.100.124.bootpc: [bad udp cksum 0x4b18 -> 0x453e!] BOOTP/DHCP, Reply, length 304, xid 0xe7846238, Flags [none] (0x0000)
- Your-IP 192.168.100.124
- Server-IP lsm
- Client-Ethernet-Address 52:54:00:be:0b:ab (oui Unknown)
- Vendor-rfc1048 Extensions
- Magic Cookie 0x63825363
- DHCP-Message Option 53, length 1: ACK
- Server-ID Option 54, length 4: lsm
- Lease-Time Option 51, length 4: 3600
- RN Option 58, length 4: 1800
- RB Option 59, length 4: 3150
- Subnet-Mask Option 1, length 4: 255.255.255.0
- BR Option 28, length 4: 192.168.100.255
- Domain-Name-Server Option 6, length 4: lsm
- Hostname Option 12, length 4: "vm03"
- Default-Gateway Option 3, length 4: lsm
- NTP Option 42, length 4: lsm
- END Option 255, length 0
- ^C
- 6 packets captured
- 6 packets received by filter
- 0 packets dropped by kernel
- lsm1:~ # tcpdump -i eth1 -vvv -s 0 port bootps
- tcpdump: listening on eth1, link-type EN10MB (Ethernet), capture size 65535 bytes
- 13:43:10.091823 IP (tos 0x10, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 328)
- 0.0.0.0.bootpc > 255.255.255.255.bootps: [udp sum ok] BOOTP/DHCP, Request from 52:54:00:be:0b:ab (oui Unknown), length 300, xid 0xe8846238, Flags [none] (0x0000)
- Client-Ethernet-Address 52:54:00:be:0b:ab (oui Unknown)
- Vendor-rfc1048 Extensions
- Magic Cookie 0x63825363
- DHCP-Message Option 53, length 1: Request
- Client-ID Option 61, length 5: "vm03"
- Requested-IP Option 50, length 4: 192.168.100.124
- Hostname Option 12, length 4: "vm03"
- Parameter-Request Option 55, length 28:
- RN, RB, Subnet-Mask, BR
- MTU, Classless-Static-Route, Static-Route, Default-Gateway
- Hostname, Option 119, Domain-Name, Domain-Name-Server
- YD, YS, NTP, RP
- LPR-Server, LOG, Option 85, Option 86
- Option 87, Option 120, Netbios-Name-Server, WDD
- Netbios-Node, Netbios-Scope, PRTR, MDHCP
- MSZ Option 57, length 2: 1500
- END Option 255, length 0
- PAD Option 0, length 0, occurs 3
- 13:43:10.092242 IP (tos 0xc0, ttl 64, id 14184, offset 0, flags [none], proto UDP (17), length 328)
- lsm.bootps > 255.255.255.255.bootpc: [bad udp cksum 0x25ef -> 0x795b!] BOOTP/DHCP, Reply, length 300, xid 0xe8846238, Flags [Broadcast] (0x8000)
- Client-Ethernet-Address 52:54:00:be:0b:ab (oui Unknown)
- Vendor-rfc1048 Extensions
- Magic Cookie 0x63825363
- DHCP-Message Option 53, length 1: NACK
- Server-ID Option 54, length 4: lsm
- MSG Option 56, length 22: "static lease available"
- END Option 255, length 0
- PAD Option 0, length 0, occurs 26
- 13:43:11.092791 IP (tos 0x10, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 328)
- 0.0.0.0.bootpc > 255.255.255.255.bootps: [udp sum ok] BOOTP/DHCP, Request from 52:54:00:be:0b:ab (oui Unknown), length 300, xid 0xe9846238, Flags [none] (0x0000)
- Client-Ethernet-Address 52:54:00:be:0b:ab (oui Unknown)
- Vendor-rfc1048 Extensions
- Magic Cookie 0x63825363
- DHCP-Message Option 53, length 1: Discover
- Client-ID Option 61, length 5: "vm03"
- Parameter-Request Option 55, length 28:
- RN, RB, Subnet-Mask, BR
- MTU, Classless-Static-Route, Static-Route, Default-Gateway
- Hostname, Option 119, Domain-Name, Domain-Name-Server
- YD, YS, NTP, RP
- LPR-Server, LOG, Option 85, Option 86
- Option 87, Option 120, Netbios-Name-Server, WDD
- Netbios-Node, Netbios-Scope, PRTR, MDHCP
- MSZ Option 57, length 2: 1500
- END Option 255, length 0
- PAD Option 0, length 0, occurs 15
- 13:43:11.093177 IP (tos 0xc0, ttl 64, id 35610, offset 0, flags [none], proto UDP (17), length 328)
- lsm.bootps > 192.168.100.124.bootpc: [bad udp cksum 0x4b14 -> 0xeaf8!] BOOTP/DHCP, Reply, length 300, xid 0xe9846238, Flags [none] (0x0000)
- Your-IP 192.168.100.124
- Server-IP lsm
- Client-Ethernet-Address 52:54:00:be:0b:ab (oui Unknown)
- Vendor-rfc1048 Extensions
- Magic Cookie 0x63825363
- DHCP-Message Option 53, length 1: Offer
- Server-ID Option 54, length 4: lsm
- Lease-Time Option 51, length 4: 3600
- RN Option 58, length 4: 1800
- RB Option 59, length 4: 3150
- Subnet-Mask Option 1, length 4: 255.255.255.0
- BR Option 28, length 4: 192.168.100.255
- Domain-Name-Server Option 6, length 4: lsm
- Default-Gateway Option 3, length 4: lsm
- NTP Option 42, length 4: lsm
- END Option 255, length 0
- PAD Option 0, length 0, occurs 2
- 13:43:11.093556 IP (tos 0x10, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 337)
- 0.0.0.0.bootpc > 255.255.255.255.bootps: [udp sum ok] BOOTP/DHCP, Request from 52:54:00:be:0b:ab (oui Unknown), length 309, xid 0xea846238, Flags [none] (0x0000)
- Client-Ethernet-Address 52:54:00:be:0b:ab (oui Unknown)
- Vendor-rfc1048 Extensions
- Magic Cookie 0x63825363
- DHCP-Message Option 53, length 1: Request
- Client-ID Option 61, length 5: "vm03"
- Server-ID Option 54, length 4: lsm
- Requested-IP Option 50, length 4: 192.168.100.124
- Hostname Option 12, length 4: "vm03"
- Parameter-Request Option 55, length 28:
- RN, RB, Subnet-Mask, BR
- MTU, Classless-Static-Route, Static-Route, Default-Gateway
- Hostname, Option 119, Domain-Name, Domain-Name-Server
- YD, YS, NTP, RP
- LPR-Server, LOG, Option 85, Option 86
- Option 87, Option 120, Netbios-Name-Server, WDD
- Netbios-Node, Netbios-Scope, PRTR, MDHCP
- MSZ Option 57, length 2: 1500
- Lease-Time Option 51, length 4: 3600
- END Option 255, length 0
- 13:43:11.159093 IP (tos 0xc0, ttl 64, id 35646, offset 0, flags [none], proto UDP (17), length 332)
- lsm.bootps > 192.168.100.124.bootpc: [bad udp cksum 0x4b18 -> 0x423e!] BOOTP/DHCP, Reply, length 304, xid 0xea846238, Flags [none] (0x0000)
- Your-IP 192.168.100.124
- Server-IP lsm
- Client-Ethernet-Address 52:54:00:be:0b:ab (oui Unknown)
- Vendor-rfc1048 Extensions
- Magic Cookie 0x63825363
- DHCP-Message Option 53, length 1: ACK
- Server-ID Option 54, length 4: lsm
- Lease-Time Option 51, length 4: 3600
- RN Option 58, length 4: 1800
- RB Option 59, length 4: 3150
- Subnet-Mask Option 1, length 4: 255.255.255.0
- BR Option 28, length 4: 192.168.100.255
- Domain-Name-Server Option 6, length 4: lsm
- Hostname Option 12, length 4: "vm03"
- Default-Gateway Option 3, length 4: lsm
- NTP Option 42, length 4: lsm
- END Option 255, length 0
- ^[[A^C
- 6 packets captured
- 6 packets received by filter
- 0 packets dropped by kernel
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