000035820 - How To enable and disable IPv6 on RSA NetWitness Logs & Packets 11.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

          
         
    3. Save and exit the file.

    4. Execute the following command to reflect the changes. 

sysctl -p

          
           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

   OR 

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

       

   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

      

   OR 

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