diff --git a/luci-app-passwall/luasrc/passwall/util_sing-box.lua b/luci-app-passwall/luasrc/passwall/util_sing-box.lua
index 61e7a23f2..16122e2f6 100644
--- a/luci-app-passwall/luasrc/passwall/util_sing-box.lua
+++ b/luci-app-passwall/luasrc/passwall/util_sing-box.lua
@@ -1298,7 +1298,7 @@ function gen_config(var)
 		if remote_dns_fake then
 			dns.fakeip = {
 				enabled = true,
-				inet4_range = "198.18.0.0/16",
+				inet4_range = "198.18.0.0/15",
 				inet6_range = "fc00::/18",
 			}
 			
diff --git a/luci-app-passwall/root/usr/share/passwall/iptables.sh b/luci-app-passwall/root/usr/share/passwall/iptables.sh
index 3cb7bbfb2..4cba79f50 100755
--- a/luci-app-passwall/root/usr/share/passwall/iptables.sh
+++ b/luci-app-passwall/root/usr/share/passwall/iptables.sh
@@ -34,7 +34,7 @@ ip6t_m="$ip6t -t mangle -w"
 [ -z "$ip6t" -o -z "$(lsmod | grep 'ip6table_nat')" ] && ip6t_n="eval #$ip6t_n"
 [ -z "$ip6t" -o -z "$(lsmod | grep 'ip6table_mangle')" ] && ip6t_m="eval #$ip6t_m"
 FWI=$(uci -q get firewall.passwall.path 2>/dev/null)
-FAKE_IP="198.18.0.0/16"
+FAKE_IP="198.18.0.0/15"
 
 factor() {
 	if [ -z "$1" ] || [ -z "$2" ]; then
diff --git a/luci-app-passwall/root/usr/share/passwall/nftables.sh b/luci-app-passwall/root/usr/share/passwall/nftables.sh
index b495fe1b0..bb4387420 100755
--- a/luci-app-passwall/root/usr/share/passwall/nftables.sh
+++ b/luci-app-passwall/root/usr/share/passwall/nftables.sh
@@ -26,7 +26,7 @@ FORCE_INDEX=0
 . /lib/functions/network.sh
 
 FWI=$(uci -q get firewall.passwall.path 2>/dev/null)
-FAKE_IP="198.18.0.0/16"
+FAKE_IP="198.18.0.0/15"
 
 factor() {
 	if [ -z "$1" ] || [ -z "$2" ]; then
diff --git a/luci-app-passwall/root/usr/share/passwall/rules/lanlist_ipv4 b/luci-app-passwall/root/usr/share/passwall/rules/lanlist_ipv4
index e5bfeace0..82b1600e5 100644
--- a/luci-app-passwall/root/usr/share/passwall/rules/lanlist_ipv4
+++ b/luci-app-passwall/root/usr/share/passwall/rules/lanlist_ipv4
@@ -8,7 +8,6 @@
 192.0.2.0/24
 192.88.99.0/24
 192.168.0.0/16
-198.18.0.0/15
 198.51.100.0/24
 203.0.113.0/24
 224.0.0.0/4