000035820 - How to enable and disable IPv6 on RSA NetWitness Logs & Network 11.x hosts

Document created by RSA Customer Support Employee on Jan 26, 2018Last modified by RSA Customer Support Employee on Apr 17, 2019
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Article Number000035820
Applies ToRSA Product Set: NetWitness Logs & Network
RSA Version/Condition: 11.0
Component: All hosts
Platform: CentOS
O/S Version: EL7
IssueHow to Disable And Enable IPv6 In Netwitness11.x Hosts?

Here are the steps to disable IPv6 in RSA NetWitness Logs & Packets hosts.
Method 1: 

  1. Edit file /etc/sysctl.conf

    vi /etc/sysctl.conf

  2. Add the following lines:

    net.ipv6.conf.all.disable_ipv6 = 1
    net.ipv6.conf.default.disable_ipv6 = 1

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  3. Save and exit the file.
  4. Execute the following command to reflect the changes. 

    sysctl -p

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               To re-enable IPv6, remove the above lines from /etc/sysctl.conf and reboot the machine.

     Method 2:

       1. To disable IPv6 in a running system, enter the following commands one by one:         

    sysctl -w net.ipv6.conf.all.disable_ipv6=1
    sysctl -w net.ipv6.conf.default.disable_ipv6=1

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    echo 1 > /proc/sys/net/ipv6/conf/all/disable_ipv6
    echo 1 > /proc/sys/net/ipv6/conf/default/disable_ipv6                       

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       2. To enable IPv6 on a running system, enter the following commands one by one:

    sysctl -w net.ipv6.conf.all.disable_ipv6=0
    sysctl -w net.ipv6.conf.default.disable_ipv6=0

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    echo 0 > /proc/sys/net/ipv6/conf/all/disable_ipv6
    echo 0 > /proc/sys/net/ipv6/conf/default/disable_ipv6

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