186
3-17-2. DHCP Snooping Entry
Function name:
DHCP Snooping Entry
Function description:
DHCP snooping Entry allows a switch to add the an trust DHCP server and 2
trust port to build the DHCP snooping available entry. This information can be
useful in tracking an IP address back to a physical port and enable or disable
the DHCP Option 82.
Fig. 3-17-1 DHCP Snooping State
Parameter description:
VID
：
When DHCP snooping is enabled, and enabled on the specified
VLAN, DHCP packet filtering will be performed on any un-trusted
ports within the VLAN. It set a available VLAN ID to enable the DHCP
snooping on VLAN interface.
Trust Port 1
：
If DHCP snooping is enabled globally, and also enabled on
the VLAN where the DHCP packet is received, all DHCP packets are
forwarded for a trusted por. It set a trust port 1. available port from 0
to 24. 0 is disabled.
Trust port 2 :
It set a trust port 2. available port from 0 to 24. 0 is disabled.
Trust VID
：
It set a trust VLAN ID. available VID from 1 to 4094.
Server IP
：
It set a trust DHCP Server IP address for DHCP Snooping.
Option 82
：
It set the DHCP Option 82 function on the switch, default is
Disable.
Action
：
It set the switch when received a client DHCP request packet then
action for filtering. available action : keep/ drop / replace.
Note
：
Filtering rules are implemented as follows:
-
If the DHCP snooping is disabled, all DHCP packets are forwarded.
-
If DHCP snooping is enabled and also enabled on the VLAN where
the DHCP packet is received, all DHCP packets are forwarded for a
trusted port.
-
If DHCP snooping is enabled and also enabled on the VLAN where
the DHCP packet is received, but the port is not trusted, it is
Содержание LGB1002A-R2
Страница 1: ...i 16 Port 1000BASE TX L2 Plus Managed Ethernet Switch...
Страница 5: ...v Revision History Release Date Revision 0 91 2008 03 12 A1 0 95 2008 06 30 A2...
Страница 32: ...26 Fig 2 15 Office Network Connection Fig 2 14 Peer to peer Network Connection...
Страница 43: ...37 Fig 3 6...
Страница 71: ...65 Fig 3 24...
Страница 89: ...83 Fig 3 39 Fig 3 40 Fig 3 41...
Страница 101: ...95 Fig 3 54 Set up Typical Network Application Rules Finish Fig 3 55 Set up Typical Network Application Rules Finish...
Страница 105: ...99 Fig 3 62 Set up VLAN Tag Priority Mapping Finish...
Страница 113: ...107 Fig 3 69 Frame Type Fig 3 70...
Страница 114: ...108 Fig 3 71 Fig 3 72 Fig 3 73 ARP...
Страница 115: ...109 Fig 3 74 ARP Fig 3 75 ARP Fig 3 76 ARP Fig 3 77 ARP...
Страница 116: ...110 Fig 3 78 ARP Fig 3 79 ARP Fig 3 80 ARP Fig 3 81 ARP...
Страница 117: ...111 Fig 3 83 ARP Fig 3 84 ARP Fig 3 85 ARP Fig 3 86 ARP Fig 3 87 ARP...
Страница 118: ...112 Fig 3 88 IPv4 Fig 3 89 IPv4 Fig 3 90 IPv4...
Страница 119: ...113 Fig 3 91 IPv4 Fig 3 92 IPv4 Fig 3 93 IPv4 Fig 3 94 IPv4 Fig 3 95 IPv4...
Страница 120: ...114 Fig 3 96 IPv4 Fig 3 97 IPv4 Fig 3 98 IPv4 Fig 3 99 IPv4 Fig 3 100 IPv4...
Страница 121: ...115 Fig 3 101 IPv4 Fig 3 102 IPv4 Fig 3 103 IPv4...
Страница 122: ...116 Fig 3 104 IPv4 Fig 3 105 IPv4 Fig 3 106 IPv4...
Страница 123: ...117 Fig 3 107 IPv4 Fig 3 108 IPv4 Fig 3 109 IPv4...
Страница 124: ...118 Fig 3 110 IPv4 Fig 3 111 IPv4 Fig 3 112 IPv4...
Страница 125: ...119 Fig 3 113 IPv4 Fig 3 114 IPv4 Fig 3 115 IPv4...
Страница 126: ...120 Fig 3 116 IPv4 Fig 3 117 IPv4 Fig 3 118 Action...
Страница 127: ...121 Fig 3 119 Rate Limiter Fig 3 120 Port Copy...
Страница 128: ...122 Fig 3 121 DMAC Filter Fig 3 122 VLAN ID Filter Fig 3 123 VLAN ID Filter...
Страница 140: ...134 Fig 3 126 Set up Policy Rules Fig 3 127 Set up Policy Rules Fig 3 128 Set up Policy Rules...
Страница 141: ...135 Fig 3 129 Set up Policy Rules Finish Fig 3 130 Set up Port Policies Fig 3 131 Set up Port Policies...
Страница 196: ...190 Fig 3 170...
Страница 204: ...198 Fig 4 1 Fig 4 2 LGB1002A R2 LGB1002A R2 LGB1002A R2 LGB1002A R2...
Страница 255: ...249 MAC Address Alias 1 00 02 03 04 05 06 aaa 2 00 33 03 04 05 06 ccc 3 00 44 33 44 55 44 www...
Страница 258: ...252 6 Enable 6 Normal 7 Enable 7 Normal 8 Enable 8 Normal...
Страница 318: ......
