added ipv6 tag

tasks/main.yml

diff --git a/tasks/main.yml b/tasks/main.yml
index 4aa2318..f5f02dd 100644
--- a/tasks/main.yml
+++ b/tasks/main.yml
@@ -113,10 +113,12 @@
 - name: Disable Default IPV6
   become: yes
   shell: "sysctl -w net.ipv6.conf.default.disable_ipv6=1"
+  tags: ['ipv6']
 
 - name: Disable All IPV6
   become: yes
   shell: "sysctl -w net.ipv6.conf.all.disable_ipv6=1"
+  tags: ['ipv6']
 
 - name: Update for apigee installation environment
   become: yes