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Huawei S1720 User Manual

Huawei S1720
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S1700 Managed Series Ethernet Switches
Web User Manual
9 Security
Issue 05 (2012-10-25)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
158
Item
Description
One Key Bind
One Key Bind button is used to set the entire Bind State field in
entries to Bind State.
One Key Unbind
One Key Unbind button is used to set the entire Bind State field in
entries to Unbind State.
CAUTION
To bind ARP entry as IPSG entry, IPSG should be enabled on interface first.
9.10 DAI
DAI (Dynamic ARP Inspection) is used to check the legality of received packet by using the
DHCP snooping table and IPSG static ARP table. The illegal ARP messages will be discarded.
Functions are as follows:
1. Use DHCP snooping table and IPSG static table to create a credible, real and safe ARP
cache library for resisting ARP spoofing.
2. The non-trusted interface ARP responses will be blocked and matched to check if the
interface is matched; otherwise, the unmatched one should be discarded.
3. The trusted interface will not be blocked and matched.
4. Limit the ARP packet rate for non-trusted interface.
9.10.1 Global
Click Security> DAI> Global, the configuration page is displayed as follows.
Figure 9-46 Global Settings

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Huawei S1720 Specifications

General IconGeneral
Operating Temperature0°C to 45°C
MAC Address Table8K
Ports4 100/1000BASE-X SFP ports
VLAN4094
StackingNot supported
Dimensions442 mm x 220 mm x 43.6 mm (S1720-28GFR-4P)
Power SupplyAC: 100 V to 240 V, 50/60 Hz
SeriesS1700
TypeFixed
Fixed ports4 x GE Combo
Storage Temperature-40°C to +70°C
Operating Humidity5% to 95% (non-condensing)
Storage Humidity5% to 95% (non-condensing)

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