Differences

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--- userdoc:tt-dhcpv6-prefix-delegation [2017/06/07 15:17] – [DHCPv6 Client Action Script] abelbeck
+++ userdoc:tt-dhcpv6-prefix-delegation [2017/06/07 15:20] (current) – [DHCPv6 Client Action Script] abelbeck
@@ Line 74: / Line 74: @@
 The ''dhcp6c_changed'' variable can be empty if there was no previous ''dhcp6c_cache'' file to compare, ''"yes"'' if different from previous, and ''"no"'' if the same as previous.  The most common use case would be to compare ''dhcp6c_changed'' with ''"no"'' to skip operations that have been previously performed.
-As an example, a simple script to log when the DHCPv6 lease is updated and whether it changed:
+As an example, a simple script to log when the DHCPv6 lease is updated and whether it changed:\\
+!!Note ->!! Occurs by default with AstLinux 1.3.0 or later
   #!/bin/bash
-  if [ -n "$dhcp6c_prefix" ]; then
+  case "$dhcp6c_changed" in
-    case "$dhcp6c_changed" in
+    yes) changed=" (changed)" ;;
-      yes) changed=" (changed)" ;;
+     no) changed=" (no change)" ;;
-       no) changed=" (no change)" ;;
+      *) changed="" ;;
-        *) changed="" ;;
+  esac
-    esac
+  logger -t dhcp6c -p kern.info "IPv6 Prefix$changed: $dhcp6c_prefix"
-    logger -t dhcp6c -p kern.info "IPv6 Prefix$changed: $dhcp6c_prefix"
-  fi
 ===== Debugging DHCPv6 =====