diff --git a/ipfn b/ipfn
new file mode 100755
index 0000000..956ffa8
--- /dev/null
+++ b/ipfn
@@ -0,0 +1,251 @@
+#!/bin/bash
+# Name: ipfn
+# Version: 1.2.4
+# Date: 2026-01-22
+# Description: Enhanced for VM/LXD/Docker with bridge-nf tuning and robust forwarding.
+
+if [ "$(id -u)" -ne 0 ]; then
+    exec sudo "$0" "$@"
+fi
+
+TABLE_NAME="ipf_wrapper"
+PROTO="tcp"
+FORCE_FLAG=false
+SKIP_TEST=false
+QUIET_MODE=false
+
+# --- 1. Utility & Core Setup ---
+
+msg() { [[ "$QUIET_MODE" == false ]] && echo -e "$@"; }
+
+init_nft() {
+    nft add table inet ${TABLE_NAME} 2>/dev/null
+    # NAT Chains
+    nft add chain inet ${TABLE_NAME} prerouting { type nat hook prerouting priority -100 \; } 2>/dev/null
+    nft add chain inet ${TABLE_NAME} output { type nat hook output priority -100 \; } 2>/dev/null
+    nft add chain inet ${TABLE_NAME} postrouting { type nat hook postrouting priority 100 \; } 2>/dev/null
+    # Filter Chain (For VM/CT Forwarding)
+    nft add chain inet ${TABLE_NAME} forward { type filter hook forward priority 0 \; policy accept \; } 2>/dev/null
+}
+
+enable_forwarding() {
+    msg "Optimizing kernel parameters for VM/LXD/Docker..."
+    sysctl -w net.ipv4.ip_forward=1 >/dev/null
+    sysctl -w net.ipv6.conf.all.forwarding=1 >/dev/null
+    sysctl -w net.ipv4.conf.all.route_localnet=1 >/dev/null
+    # ブリッジパケットをNetfilterに渡す設定 (存在する場合のみ)
+    sysctl -w net.bridge.bridge-nf-call-iptables=1 2>/dev/null
+    sysctl -w net.bridge.bridge-nf-call-ip6tables=1 2>/dev/null
+    msg "\e[32mForwarding and Bridge-NF enabled.\e[0m"
+}
+
+show_help() {
+    echo "Usage: ipfn [OPTIONS] [RULES]"
+    echo ""
+    echo "Rules Format:"
+    echo "  80:10.10.100.5:8080   Full (LocalPort:TargetIP:TargetPort)"
+    echo "  80:8080               IP defaults to 127.0.0.1"
+    echo "  11434                 Map same port to 127.0.0.1"
+    echo ""
+    echo "Options:"
+    echo "  -l, -L                List all rules"
+    echo "  -d HANDLE/:PORT/all   Delete specific rules or '*' for all"
+    echo "  -R                    Reset: Clear ALL rules immediately"
+    echo "  -q                    Quiet mode (No output, Auto-yes)"
+    echo "  -t [HANDLE]           Test connectivity"
+    echo "  -f                    Enable IP forward & Bridge tuning / Skip test"
+    echo "  -v                    Verbose (raw nftables output)"
+    echo "  -h                    Show this help"
+}
+
+list_rules() {
+    [[ "$QUIET_MODE" == true ]] && return
+    local highlight_uuid=$1
+    init_nft
+    msg "Forwarding Rules (ipfn):"
+    printf "%-10s %-6s %-20s %-20s %-10s\n" "HANDLE" "PROTO" "LOCAL" "TARGET" "UUID"
+    echo "-----------------------------------------------------------------------------------"
+    nft -a list chain inet ${TABLE_NAME} prerouting | grep "dnat" | while read -r line; do
+        handle=$(echo "$line" | grep -o 'handle [0-9]*' | awk '{print $2}')
+        proto=$(echo "$line" | grep -q "udp" && echo "udp" || echo "tcp")
+        target=$(echo "$line" | grep -oE '([0-9.]+|\[[0-9a-fA-F:]+\]):[0-9]+' | head -n 1)
+        lport=$(echo "$line" | grep -o 'dport [0-9]*' | awk '{print $2}')
+        full_uuid=$(echo "$line" | grep -o 'ipf-id:[a-z0-9-]*' | cut -d':' -f2)
+        if [[ -n "$highlight_uuid" && "$full_uuid" == "$highlight_uuid" ]]; then
+            printf "\e[1;36m*%-9s %-6s %-20s %-20s %-10s\e[0m\n" "$handle" "$proto" ":$lport" "$target" "${full_uuid:0:8}"
+        else
+            printf "%-10s %-6s %-20s %-20s %-10s\n" "$handle" "$proto" ":$lport" "$target" "${full_uuid:0:8}"
+        fi
+    done
+}
+
+test_rule_by_port() {
+    [[ "$QUIET_MODE" == true ]] && return
+    local lp=$1
+    echo -n "Testing connectivity to :$lp... "
+    if nc -z -v -w 2 127.0.0.1 "$lp" 2>&1 | grep -iqE "succeeded|connected|open"; then
+        echo -e "\e[32mOK\e[0m"
+    else
+        echo -e "\e[31mFAILED\e[0m"
+    fi
+}
+
+# --- 2. Deletion Logic ---
+
+validate_rule_handle() {
+    nft -a list chain inet ${TABLE_NAME} prerouting | grep "handle $1" | grep -q "dnat"
+}
+
+all_clear() {
+    if [[ "$FORCE_FLAG" == false ]]; then
+        msg "\e[33mWarning: This will delete ALL forwarding rules.\e[0m"
+        read -p "Are you sure? (y/N): " confirm
+        [[ ! "$confirm" =~ ^[yY]$ ]] && exit 0
+    fi
+    nft delete table inet ${TABLE_NAME} 2>/dev/null
+    init_nft
+    msg "All rules cleared successfully."
+    exit 0
+}
+
+parse_delete_targets() {
+    local input=$1
+    local -a final_handles=()
+    [[ "$input" == "*" || "$input" == "all" ]] && all_clear
+    IFS=',' read -r -a parts <<< "$input"
+    for part in "${parts[@]}"; do
+        if [[ "$part" =~ ^:([0-9]+)$ ]]; then
+            local target_port="${BASH_REMATCH[1]}"
+            local found_h=$(nft -a list chain inet ${TABLE_NAME} prerouting | grep "dport $target_port" | grep -o 'handle [0-9]*' | awk '{print $2}')
+            for h in $found_h; do final_handles+=("$h"); done
+        elif [[ "$part" =~ ^([0-9]+)-([0-9]+)$ ]]; then
+            for ((i=${BASH_REMATCH[1]}; i<=${BASH_REMATCH[2]}; i++)); do
+                validate_rule_handle "$i" && final_handles+=("$i")
+            done
+        else
+            validate_rule_handle "$part" && final_handles+=("$part")
+        fi
+    done
+    echo "${final_handles[@]}"
+}
+
+# --- 3. Adding Logic ---
+
+add_rule() {
+    init_nft
+    local raw_input=$1
+    local lp tip tp
+
+    if [[ "$raw_input" =~ ^([0-9]+):([0-9\.]+):([0-9]+)$ ]]; then
+        lp=${BASH_REMATCH[1]}; tip=${BASH_REMATCH[2]}; tp=${BASH_REMATCH[3]}
+    elif [[ "$raw_input" =~ ^([0-9]+):([0-9]+)$ ]]; then
+        lp=${BASH_REMATCH[1]}; tip="127.0.0.1"; tp=${BASH_REMATCH[2]}
+    elif [[ "$raw_input" =~ ^([0-9]+)$ ]]; then
+        lp=${BASH_REMATCH[1]}; tip="127.0.0.1"; tp=${BASH_REMATCH[1]}
+    else
+        msg "\e[31mError: Invalid rule format '$raw_input'\e[0m"; exit 1
+    fi
+
+    local raw_uuid=$(cat /proc/sys/kernel/random/uuid)
+    local uuid="ipf-id:$raw_uuid"
+    local family="ip"; [[ "$tip" =~ : ]] && family="ip6"
+
+    # DNAT
+    nft add rule inet ${TABLE_NAME} prerouting "$PROTO" dport "$lp" dnat $family to "$tip:$tp" comment "\"$uuid\""
+    nft add rule inet ${TABLE_NAME} output "$PROTO" dport "$lp" dnat $family to "$tip:$tp" comment "\"$uuid\""
+    
+    # FORWARD (VM/CT対応)
+    nft add rule inet ${TABLE_NAME} forward $family daddr "$tip" "$PROTO" dport "$tp" ct state new,established,related accept comment "\"$uuid\""
+    nft add rule inet ${TABLE_NAME} forward $family saddr "$tip" "$PROTO" sport "$tp" ct state established,related accept comment "\"$uuid\""
+    nft add rule inet ${TABLE_NAME} forward iifname "lo" accept comment "\"$uuid\""
+    
+    # POSTROUTING (MASQUERADE: 戻りパケットの保証)
+    nft add rule inet ${TABLE_NAME} postrouting $family daddr "$tip" "$PROTO" dport "$tp" masquerade comment "\"$uuid\""
+    
+    list_rules "$raw_uuid"
+    [[ "$SKIP_TEST" == false ]] && { echo ""; test_rule_by_port "$lp"; }
+}
+
+# --- 4. Main Parsing ---
+
+for arg in "$@"; do
+    [[ "$arg" =~ q ]] && QUIET_MODE=true && FORCE_FLAG=true && SKIP_TEST=true
+    [[ "$arg" =~ f ]] && FORCE_FLAG=true && SKIP_TEST=true
+    [[ "$arg" == "-R" ]] && RESET_MODE=true
+done
+
+if [[ "$RESET_MODE" == true ]]; then all_clear; fi
+
+if [[ $# -eq 0 ]]; then list_rules; exit 0; fi
+
+while [[ $# -gt 0 ]]; do
+    case "$1" in
+        -h|--help) show_help; exit 0 ;;
+        -v|--verbose) nft list table inet ${TABLE_NAME}; exit 0 ;;
+        -L|-l) list_rules; exit 0 ;;
+        -f)
+            enable_forwarding
+            [[ $# -eq 1 ]] && exit 0 ;;
+	-t*)
+            h_str="${1#-t}"
+            # 引数が空で、次に引数がある場合 (例: -t 80:)
+            if [[ -z "$h_str" && -n "$2" ]]; then h_str="$2"; shift; fi
+            
+            local target_port=""
+
+            if [[ "$h_str" =~ ^([0-9]+):$ ]]; then
+                # パターン: -t 80: (ポート直接指定)
+                target_port="${BASH_REMATCH[1]}"
+            elif [[ -n "$h_str" ]]; then
+                # パターン: -t 33 (ハンドル指定)
+                target_port=$(nft -a list chain inet ${TABLE_NAME} prerouting | grep "handle $h_str" | grep -o 'dport [0-9]*' | awk '{print $2}')
+            else
+                # パターン: -t (引数なし、自動選択)
+                count=$(nft list chain inet ${TABLE_NAME} prerouting | grep -c "dnat")
+                if [ "$count" -eq 1 ]; then
+                    target_port=$(nft -a list chain inet ${TABLE_NAME} prerouting | grep "dnat" | grep -o 'dport [0-9]*' | awk '{print $2}')
+                else
+                    msg "Error: Multiple rules exist. Use -t [HANDLE] or -t [PORT]:"; exit 1
+                fi
+            fi
+
+            if [[ -n "$target_port" ]]; then
+                test_rule_by_port "$target_port"
+            else
+                msg "Error: Could not identify port for test."
+            fi
+            exit 0 ;;
+        -*[d]*)
+            h_str=$(echo "$1" | sed -E 's/^-q?d?f?//')
+            [[ -z "$h_str" ]] && { h_str="$2"; shift; }
+            handles=($(parse_delete_targets "$h_str"))
+            [[ ${#handles[@]} -eq 0 ]] && { msg "No valid targets."; exit 1; }
+            if [[ "$FORCE_FLAG" == false ]]; then
+                msg "Review rules to delete (Top-level only):"
+                for h in "${handles[@]}"; do
+                    nft -a list chain inet ${TABLE_NAME} prerouting | grep "handle $h" | sed 's/^/  /'
+                done
+                read -p "Delete these rules and their sub-rules? (y/N): " confirm
+                [[ ! "$confirm" =~ ^[yY]$ ]] && exit 0
+            fi
+            for h in "${handles[@]}"; do
+                ri=$(nft -a list chain inet ${TABLE_NAME} prerouting | grep "handle $h")
+                [[ -z "$ri" ]] && continue
+                uuid=$(echo "$ri" | grep -o 'ipf-id:[a-z0-9-]*' | head -n 1)
+                for c in prerouting output forward postrouting; do
+                    nft -a list chain inet ${TABLE_NAME} "$c" | grep "$uuid" | grep -o 'handle [0-9]*' | awk '{print $2}' | while read -r rh; do
+                        nft delete rule inet ${TABLE_NAME} "$c" handle "$rh"
+                    done
+                done
+                msg "Deleted associated with handle $h"
+            done
+            list_rules; exit 0 ;;
+        *)
+            if [[ "$1" =~ ^[0-9] ]]; then
+                add_rule "$1"; exit 0
+            else
+                msg "\e[31mError: Unknown option '$1'\e[0m\n"; show_help; exit 1
+            fi ;;
+    esac
+    shift
+done