Remote access clients that are running Windows Vista cannot access Routing and Remote Access Service servers that use IPv6

Remote access clients that are running Windows Vista cannot access Routing and Remote Access Service servers that use IPv6 or the computers behind the servers.


CAUSE

Assume that you have used remote access policy to add Point-to-Point Protocol (PPP) connection-based IPv6 filters to Routing and Remote Access Service static filters. For example, you configure remote access policy to enable only TCP port 80 to carry traffic. In this scenario, the remote access policy will block all traffic except the traffic that is specified in the policy. The blocked traffic includes Internet Control Message Protocol (ICMP) v6 neighbor discovery (ND) packets. These packets are required for clients to reach Routing and Remote Access Service servers that use IPv6 or the computers behind these servers.

Note Routing and Remote Access Service servers that use IPv4 do not require ICMPv6 ND packets. Therefore, this issue does not occur if Routing and Remote Access Service servers use IPv4.


RESOLUTION

To resolve this issue, follow these steps:

1. Locate and then open the remote access policy.
2. Click the Settings tab, and then click IP Filters.
3. Under IPv6, click Input Filters.
4. Add the following explicit filters to enable ICMPv6 ND packets to be received:

IPv6 Next header type == 58, ICMP header type = 133
IPv6 Next header type == 58, ICMP header type = 134
IPv6 Next header type == 58, ICMP header type = 135
IPv6 Next header type == 58, ICMP header type = 136
IPv6 Next header type == 58, ICMP header type = 137



APPLIES TO
Windows Vista Enterprise 64-bit Edition
Windows Vista Home Basic 64-bit Edition
Windows Vista Home Premium 64-bit Edition
Windows Vista Ultimate 64-bit Edition
Windows Vista Business
Windows Vista Business 64-bit Edition
Windows Vista Enterprise
Windows Vista Home Basic
Windows Vista Home Premium
Windows Vista Starter
Windows Vista Ultimate

——————————————–

Microsoft Knowledge Base Article

This article contents is Microsoft Copyrighted material.
Microsoft Corporation. All rights reserved. Terms of Use | Trademarks

 


You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

AddThis Social Bookmark Button

Leave a Reply

*
To prove that you're not a bot, enter this code
Anti-Spam Image