2 call-triggering packet, 3 diagnostic – ZyXEL Communications Internet Security Gateway ZyWALL 2 Series User Manual

Page 467

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ZyWALL 2 Series User’s Guide

System Information and Diagnosis

32-9

32.4.2 Call-Triggering Packet

Call-Triggering Packet displays information about the packet that triggered a dial-out call in an easy
readable format. Equivalent information is available in menu 24.1 in hex format. An example is shown
next.

Figure 32-8 Call-Triggering Packet Example

32.4.3 Diagnostic

The diagnostic facility allows you to test the different aspects of your ZyWALL to determine if it is
working properly. Menu 24.4 allows you to choose among various types of diagnostic tests to evaluate your
system, as shown next.

IP Frame: ENET0-RECV Size: 44/ 44 Time: 17:02:44.262

Frame Type:


IP Header:

IP Version = 4

Header Length = 20

Type of Service = 0x00 (0)

Total Length = 0x002C (44)

Identification = 0x0002 (2)
Flags = 0x00

Fragment Offset = 0x00

Time to Live = 0xFE (254)

Protocol = 0x06 (TCP)

Header Checksum = 0xFB20 (64288)

Source IP = 0xC0A80101 (192.168.1.1)
Destination IP = 0x00000000 (0.0.0.0)

TCP Header:

Source Port = 0x0401 (1025)

Destination Port = 0x000D (13)

Sequence Number = 0x05B8D000 (95997952)

Ack Number = 0x00000000 (0)
Header Length = 24

Flags = 0x02 (....S.)

Window Size = 0x2000 (8192)

Checksum = 0xE06A (57450)

Urgent Ptr = 0x0000 (0)

Options =
0000: 02 04 02 00

RAW DATA:

0000: 45 00 00 2C 00 02 00 00-FE 06 FB 20 C0 A8 01 01 E......... ....

0010: 00 00 00 00 04 01 00 0D-05 B8 D0 00 00 00 00 00 ................

0020: 60 02 20 00 E0 6A 00 00-02 04 02 00
Press any key to continue...

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