How To Use DHCP Snooping, Option 82, and Filtering on AT-8800, AT-8600, AT-8700XL, Rapier, and Rapier i Series Switches
●Know which customer was allocated an IP address at any time.
●Guarantee that customers cannot avoid detection by spoofing an IP address that was not actually allocated to them.
These security features provide a traceable history in the event of an official query. Three components are used to provide this traceable history:
●DHCP snooping
●DHCP Option 82
●DHCP filtering
With DHCP snooping an administrator can control port-to-IP connectivity by:
●permitting port access to specified IP addresses only
●permitting port access to DHCP issued IP addresses only
●dictating the number of IP clients on any given port
●passing location information about an IP client to the DHCP server
●permitting only known IP clients to ARP
This document explains each feature and provides the minimum configuration to enable them. There are also two configuration examples that make advanced use of the features.
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AT-9900 、 x900-48 、 AT-8948 、 AT-8948 series 、 x900-48 Series 、 AT-8800 、 AT-8600 、 AT-8700XL |
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User's Guide |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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2007/12/7 |
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REV B |
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C613-16086-00 |
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221 KB |
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