Access Control Lists
7-4
7
•
Source/Destination Port
– Source/destination port number for the specified
protocol type. (Range: 0-65535)
•
Source/Destination Port
Bit Mask
– Decimal number representing the port bits
to match. (Range: 0-65535)
•
Control Code
– Decimal number (representing a bit string) that specifies flag bits
in byte 14 of the TCP header. (Range: 0-63)
•
Control Code Bit Mask
– Decimal number representing the code bits to match.
The control bitmask is a decimal number (for an equivalent binary bit mask) that is
applied to the control code. Enter a decimal number, where the equivalent binary
bit “1” means to match a bit and “0” means to ignore a bit. The following bits may
be specified:
- 1 (fin) – Finish
- 2 (syn) – Synchronize
- 4 (rst) – Reset
- 8 (psh) – Push
- 16 (ack) – Acknowledgement
- 32 (urg) – Urgent pointer
For example, use the code value and mask below to catch packets with the
following flags set:
- SYN flag valid, use control-code 2, control bitmask 2
- Both SYN and ACK valid, use control-code 18, control bitmask 18
- SYN valid and ACK invalid, use control-code 2, control bitmask 18
Содержание 8926EM
Страница 6: ...ii ...
Страница 34: ...Getting Started ...
Страница 44: ...Introduction 1 10 1 ...
Страница 62: ...Initial Configuration 2 18 2 ...
Страница 64: ...Switch Management ...
Страница 76: ...Configuring the Switch 3 12 3 ...
Страница 118: ...Basic Management Tasks 4 42 4 ...
Страница 164: ...User Authentication 6 28 6 ...
Страница 176: ...Access Control Lists 7 12 7 ...
Страница 284: ...Quality of Service 14 8 14 ...
Страница 294: ...Multicast Filtering 15 10 15 ...
Страница 300: ...Domain Name Service 16 6 16 ...
Страница 310: ...Dynamic Host Configuration Protocol 17 10 17 ...
Страница 320: ...Configuring Router Redundancy 18 10 18 ...
Страница 344: ...IP Routing 19 24 19 ...
Страница 356: ...Unicast Routing 20 12 20 Web Click Routing Protocol RIP Statistics Figure 20 5 RIP Statistics ...
Страница 386: ...Unicast Routing 20 42 20 ...
Страница 388: ...Command Line Interface ...
Страница 400: ...Overview of the Command Line Interface 21 12 21 ...
Страница 466: ...SNMP Commands 24 16 24 ...
Страница 520: ...Access Control List Commands 26 18 26 ...
Страница 546: ...Rate Limit Commands 30 2 30 ...
Страница 612: ...VLAN Commands 34 24 34 ...
Страница 626: ...Class of Service Commands 35 14 35 ...
Страница 670: ...DHCP Commands 39 16 39 ...
Страница 716: ...IP Interface Commands 41 36 41 ...
Страница 768: ...IP Routing Commands 42 52 42 ...
Страница 770: ...Appendices ...
Страница 791: ......
Страница 792: ...20 Mason Irvine CA 92618 Phn 949 679 8000 www smc com 150200062800A R02 149100000035A R01 SMC8926EM SMC8950EM ...