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Configuration Guide - Security

S1720, S2700, S5700, and S6720 V200R011C10

This document describes the configurations of Security, including ACL, local attack defense, MFF, attack defense, traffic suppression and storm control, ARP security, Port security, DHCP snooping, ND snooping, PPPoE+, IPSG, SAVI, URPF, keychain, MPAC, separating the management plane from the service plane, security risks, PKI.
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Overview of SAVI

Overview of SAVI

The device establishes a table recording bindings between IP addresses and ports by listening to control packets for allocating IP addresses in different modes. When a port receives an ND packet, a DHCPv6 packet, or an IPv6 data packet, the device checks whether the source address of the packet matches the IP address binding to the port. If so, the packet is forwarded. If not, the packet is discarded.

The SAVI function is available for the following IP address allocation modes:
  • DHCPv6-Only: indicates that the host connected to the device enabled with the SAVI function can obtain an IP address using only DHCPv6.
  • SLAAC-Only: indicates that the host connected to the device enabled with the SAVI function can obtain the IP address using only Stateless Address Autoconfiguration (SLAAC).
  • DHCPv6 and SLAAC: indicates that the host connected to the device enabled with the SAVI function can obtain the IP address using DHCPv6 or SLAAC.
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Updated: 2019-09-23

Document ID: EDOC1000178177

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