diff --git a/misc/build.func b/misc/build.func
index a12cb131..bfe62c1c 100644
--- a/misc/build.func
+++ b/misc/build.func
@@ -197,6 +197,8 @@ base_settings() {
   HN=$NSAPP
   BRG="vmbr0"
   NET="dhcp"
+  IPV6_METHOD="slaac"
+  IPV6_STATIC=""
   GATE=""
   APT_CACHER=""
   APT_CACHER_IP=""
@@ -350,8 +352,7 @@ advanced_settings() {
           if [ "$CT_TYPE" -eq 0 ]; then
             CT_TYPE_DESC="Privileged"
           fi
-          echo -e "${OS}${BOLD}${DGN}Operating System: ${BGN}$var_os${CL}"
-          echo -e "${OSVERSION}${BOLD}${DGN}Version: ${BGN}$var_version${CL}"
+          echo -e "${OS}${BOLD}${DGN}Operating System: ${BGN}$var_os | ${OSVERSION}${BOLD}${DGN}Version: ${BGN}$var_version${CL}"
           echo -e "${CONTAINERTYPE}${BOLD}${DGN}Container Type: ${BGN}$CT_TYPE_DESC${CL}"
         fi
       else
@@ -572,6 +573,72 @@ advanced_settings() {
     echo -e "${GATEWAY}${BOLD}${DGN}Gateway IP Address: ${BGN}Default${CL}"
   fi
 
+  # IPv6 Address Management selection
+  while true; do
+    IPV6_METHOD=$(whiptail --backtitle "[dev] Proxmox VE Helper Scripts" --menu \
+      "Select IPv6 Address Management Type:" 15 58 4 \
+      "slaac" "SLAAC (recommended, default)" \
+      "dhcp" "DHCPv6" \
+      "static" "Static (manual entry)" \
+      "none" "Disabled" \
+      --default-item "slaac" 3>&1 1>&2 2>&3)
+    [ $? -ne 0 ] && exit_script
+
+    case "$IPV6_METHOD" in
+    slaac)
+      echo -e "${NETWORK}${BOLD}${DGN}IPv6: ${BGN}SLAAC (automatic)${CL}"
+      IPV6_ADDR=""
+      IPV6_GATE=""
+      break
+      ;;
+    dhcp)
+      echo -e "${NETWORK}${BOLD}${DGN}IPv6: ${BGN}DHCPv6${CL}"
+      IPV6_ADDR="dhcp"
+      IPV6_GATE=""
+      break
+      ;;
+    static)
+      # Ask for static IPv6 address (CIDR notation, e.g., 2001:db8::1234/64)
+      while true; do
+        IPV6_ADDR=$(whiptail --backtitle "[dev] Proxmox VE Helper Scripts" --inputbox \
+          "Set a static IPv6 CIDR address (e.g., 2001:db8::1234/64)" 8 58 "" \
+          --title "IPv6 STATIC ADDRESS" 3>&1 1>&2 2>&3) || exit_script
+        if [[ "$IPV6_ADDR" =~ ^([0-9a-fA-F:]+:+)+[0-9a-fA-F]+(/[0-9]{1,3})$ ]]; then
+          echo -e "${NETWORK}${BOLD}${DGN}IPv6 Address: ${BGN}$IPV6_ADDR${CL}"
+          break
+        else
+          whiptail --backtitle "[dev] Proxmox VE Helper Scripts" --msgbox \
+            "$IPV6_ADDR is an invalid IPv6 CIDR address. Please enter a valid IPv6 CIDR address (e.g., 2001:db8::1234/64)" 8 58
+        fi
+      done
+      # Optional: ask for IPv6 gateway for static config
+      while true; do
+        IPV6_GATE=$(whiptail --backtitle "[dev] Proxmox VE Helper Scripts" --inputbox \
+          "Enter IPv6 gateway address (optional, leave blank for none)" 8 58 "" --title "IPv6 GATEWAY" 3>&1 1>&2 2>&3)
+        if [ -z "$IPV6_GATE" ]; then
+          IPV6_GATE=""
+          break
+        elif [[ "$IPV6_GATE" =~ ^([0-9a-fA-F:]+:+)+[0-9a-fA-F]+$ ]]; then
+          break
+        else
+          whiptail --backtitle "[dev] Proxmox VE Helper Scripts" --msgbox \
+            "Invalid IPv6 gateway format." 8 58
+        fi
+      done
+      break
+      ;;
+    none)
+      echo -e "${NETWORK}${BOLD}${DGN}IPv6: ${BGN}Disabled${CL}"
+      IPV6_ADDR="none"
+      IPV6_GATE=""
+      break
+      ;;
+    *)
+      exit_script
+      ;;
+    esac
+  done
+
   if [ "$var_os" == "alpine" ]; then
     APT_CACHER=""
     APT_CACHER_IP=""
@@ -951,6 +1018,17 @@ start() {
 build_container() {
   #  if [ "$VERBOSE" == "yes" ]; then set -x; fi
 
+  NET_STRING="-net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU"
+  case "$IPV6_METHOD" in
+  slaac) NET_STRING="$NET_STRING,ip6=slaac" ;;
+  dhcp) NET_STRING="$NET_STRING,ip6=dhcp" ;;
+  static)
+    NET_STRING="$NET_STRING,ip6=$IPV6_ADDR"
+    [ -n "$IPV6_GATE" ] && NET_STRING="$NET_STRING,gw6=$IPV6_GATE"
+    ;;
+  none) NET_STRING="$NET_STRING,ip6=none" ;;
+  esac
+
   if [ "$CT_TYPE" == "1" ]; then
     FEATURES="keyctl=1,nesting=1"
   else
@@ -992,18 +1070,18 @@ build_container() {
   export PCT_OSVERSION="$var_version"
   export PCT_DISK_SIZE="$DISK_SIZE"
   export PCT_OPTIONS="
-    -features $FEATURES
-    -hostname $HN
-    -tags $TAGS
-    $SD
-    $NS
-    -net0 name=eth0,bridge=$BRG$MAC,ip=$NET$GATE$VLAN$MTU
-    -onboot 1
-    -cores $CORE_COUNT
-    -memory $RAM_SIZE
-    -unprivileged $CT_TYPE
-    $PW
-  "
+  -features $FEATURES
+  -hostname $HN
+  -tags $TAGS
+  $SD
+  $NS
+  $NET_STRING
+  -onboot 1
+  -cores $CORE_COUNT
+  -memory $RAM_SIZE
+  -unprivileged $CT_TYPE
+  $PW
+"
   # This executes create_lxc.sh and creates the container and .conf file
   CREATE_CMD="bash -c \"\$(curl -fsSL https://git.community-scripts.org/community-scripts/ProxmoxVED/raw/branch/main/misc/create_lxc.sh)\""
   eval "$CREATE_CMD"