habe mir eine kleine Testumgebung mit der opsi-serverVM in VirtualBox gebaut. Wenn ich meinen Test Client starte (VirtualBox VM), meldet er mir: "PXE-E32: TFTP open timeout". Der Client bekommt die richtigen Optionen übermittelt Boot file name: linux/pxelinux.0 und Next server IP address. 11.0.2.2.
tcpdump vom DHCP Server:
Code: Alles auswählen
Frame 2: 342 bytes on wire (2736 bits), 342 bytes captured (2736 bits)
Ethernet II, Src: PcsCompu_f6:6f:5b (08:00:27:f6:6f:5b), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
Internet Protocol Version 4, Src: 11.0.2.3, Dst: 255.255.255.255
0100 .... = Version: 4
.... 0101 = Header Length: 20 bytes (5)
Differentiated Services Field: 0x10 (DSCP: Unknown, ECN: Not-ECT)
Total Length: 328
Identification: 0x0000 (0)
Flags: 0x00
Fragment Offset: 0
Time to Live: 128
Protocol: UDP (17)
Header Checksum: 0x2c93 [validation disabled]
[Header checksum status: Unverified]
Source Address: 11.0.2.3
Destination Address: 255.255.255.255
User Datagram Protocol, Src Port: 67, Dst Port: 68
Source Port: 67
Destination Port: 68
Length: 308
Checksum: 0x6070 [unverified]
[Checksum Status: Unverified]
[Stream index: 1]
[Timestamps]
UDP payload (300 bytes)
Dynamic Host Configuration Protocol (Offer)
Message type: Boot Reply (2)
Hardware type: Ethernet (0x01)
Hardware address length: 6
Hops: 0
Transaction ID: 0x28be2a8f
Seconds elapsed: 4
Bootp flags: 0x8000, Broadcast flag (Broadcast)
Client IP address: 0.0.0.0
Your (client) IP address: 11.0.2.41
Next server IP address: 11.0.2.2
Relay agent IP address: 0.0.0.0
Client MAC address: PcsCompu_be:2a:8f (08:00:27:be:2a:8f)
Client hardware address padding: 00000000000000000000
Server host name not given
Boot file name: linux/pxelinux.0
Magic cookie: DHCP
Option: (53) DHCP Message Type (Offer)
Length: 1
DHCP: Offer (2)
Option: (54) DHCP Server Identifier (11.0.2.3)
Length: 4
DHCP Server Identifier: 11.0.2.3
Option: (51) IP Address Lease Time
Length: 4
IP Address Lease Time: (600s) 10 minutes
Option: (1) Subnet Mask (255.255.255.0)
Length: 4
Subnet Mask: 255.255.255.0
Option: (3) Router
Length: 4
Router: 11.0.2.1
Option: (6) Domain Name Server
Length: 4
Domain Name Server: 11.0.2.3
Option: (15) Domain Name
Length: 9
Domain Name: net.intra
Option: (28) Broadcast Address (11.0.2.255)
Length: 4
Broadcast Address: 11.0.2.255
Option: (255) End
Padding: 000000000000000000
Code: Alles auswählen
root@opsiserver:/home/adminuser# netstat -tulpn
udp 0 0 0.0.0.0:69 0.0.0.0:* 529/in.tftpd
Viele Grüsse und einen schönen Feiertag
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