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Configuration Guide - IP Service
S1720, S2700, S5700, and S6720 V200R011C10

This document describes the configurations of IP Service, including IP address, ARP, DHCP, DHCP policy VLAN, DNS, mDNS gateway, mDNS relay, UDP Helper, IP performance optimization, IPv6, DHCPv6, IPv6 DNS, IPv6 over IPv4 tunnel, and IPv4 over IPv6 tunnel.

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Default Settings for IPv6

Default Settings for IPv6

Default settings for IPv6


Default Setting

IPv6 packet forwarding


Maximum interval for sending RA packets


Minimum interval for sending RA packets


Neighbor reachable time

30000 ms

ND Miss message sending


Optimized ND reply


PMTU for a specified IPv6 address

1500 bytes

Aging time of dynamic PMTU entries

10 minutes

SYN-Wait timer for TCP6 connections


FIN-Wait timer for TCP6 connections


Packet receive or send buffer size of a TCP6 socket

8 KB

Minimum MSS value for a TCP6 connection

216 bytes

Updated: 2020-02-26

Document ID: EDOC1000178170

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