diff --git a/network.sh b/network.sh
index 884dc0b..7149de2 100644
--- a/network.sh
+++ b/network.sh
@@ -6,17 +6,7 @@ BRIDGE_NAME="vmbr0"
 
 # 获取本地IPv4地址和子网掩码
 IP_ADDR=$(ip route get 8.8.8.8 | head -1 | awk '{print $7}')
-SUBNET_MASK=$(ip route get 8.8.8.8 | head -1 | awk '{print $1}' | awk -F"/" '{print $2}')
-
-# 计算网络地址
-IFS='.' read -ra IP_ARR <<< "$IP_ADDR"
-IFS='.' read -ra MASK_ARR <<< "$SUBNET_MASK"
-NET_ADDR=""
-for ((i=0; i<4; i++)); do
-  NET_ADDR="${NET_ADDR}$((${IP_ARR[$i]} & ${MASK_ARR[$i]}))."
-done
-NET_ADDR=${NET_ADDR::-1}
-
+SUBNET_MASK="255.255.255.0"
 # 获取网关地址
 GATEWAY=$(ip route | awk '/default/ {print $3}')