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Create a Network Rule to deny IPv6 traffic but allow IPv4

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Article ID: 163678

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Updated On:

Products

Data Center Security Server Advanced

Issue/Introduction

In the environment IPv6 traffic is not used yet and should not be allowed.
You must create a rule to block all IPv6 traffic but allow IPv4 traffic.

Using a similar format as you would use for IPv4 causes both IPv6 and IPv4 traffic to be blocked.

Cause

Any IPv6 network rule that starts with 0 is translated to IPv4 as well.

Resolution

You must specify the IPv6 traffic to block by site.
For example: fe80::/1  will block all traffic from the site which IPv6 addresses begin with fe80.