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Knowledge Base

Unable to get IPv6 from DHCP server

Publication Date:  2012-10-22  |   Views:  571  |   Downloads:  0  |   Author:  cWX82586  |   Document ID:  EKB1000017746

Contents

Issue Description

Configuration inside Firewall as below.

#
interface Vlanif1
description connect-to-PC
ipv6 enable
ipv6 address 2000::1 64
dhcpv6 server enable
dhcpv6 pool v6pool
#
dhcpv6 prefix-pool address-prefix pre
prefix 2000::/32
#
dhcpv6 pool v6pool
dns-server 1::1
prefix-pool pre
#

Alarm Information

There is no alarm generated.

Handling Process

Using wireshark to capture the packet and find out there is DHCPv6 packet were sent to the user PC.

Root Cause

Software Anti virus in the user PC are actually filtering the IPv6 packet.

Suggestions

Suggest Customer to disabled the Antivirus software from the PC and user are getting IPv6 Address.