diff --git a/htdocs/luci-static/resources/view/homeproxy/client.js b/htdocs/luci-static/resources/view/homeproxy/client.js
index acc1c164..8e25993d 100644
--- a/htdocs/luci-static/resources/view/homeproxy/client.js
+++ b/htdocs/luci-static/resources/view/homeproxy/client.js
@@ -313,6 +313,15 @@ return view.extend({
 		so.depends('tcpip_stack', 'gvisor');
 		so.rmempty = false;
 
+		so = ss.option(form.Value, 'udp_timeout', _('UDP NAT expiration time'),
+			_('In seconds. <code>5m</code> is used by default.'));
+		so.datatype = 'uinteger';
+		so.default = '300';
+		so.depends('homeproxy.config.proxy_mode', 'redirect_tproxy');
+		so.depends('homeproxy.config.proxy_mode', 'redirect_tun');
+		so.depends('homeproxy.config.proxy_mode', 'tun');
+		so.rmempty = false;
+
 		so = ss.option(form.Flag, 'bypass_cn_traffic', _('Bypass CN traffic'),
 			_('Bypass mainland China traffic via firewall rules by default.'));
 		so.default = so.disabled;
diff --git a/htdocs/luci-static/resources/view/homeproxy/server.js b/htdocs/luci-static/resources/view/homeproxy/server.js
index 21bb3f92..7ea68dff 100644
--- a/htdocs/luci-static/resources/view/homeproxy/server.js
+++ b/htdocs/luci-static/resources/view/homeproxy/server.js
@@ -716,6 +716,13 @@ return view.extend({
 		o.depends({'network': 'tcp', '!reverse': true});
 		o.modalonly = true;
 
+		o = s.option(form.Value, 'udp_timeout', _('UDP NAT expiration time'),
+			_('In seconds. <code>5m</code> is used by default.'));
+		o.datatype = 'uinteger';
+		o.default = '300';
+		o.depends({'network': 'tcp', '!reverse': true});
+		o.modalonly = true;
+
 		o = s.option(form.Flag, 'sniff_override', _('Override destination'),
 			_('Override the connection destination address with the sniffed domain.'));
 		o.rmempty = false;
diff --git a/root/etc/config/homeproxy b/root/etc/config/homeproxy
index d8438f0a..f607cda1 100644
--- a/root/etc/config/homeproxy
+++ b/root/etc/config/homeproxy
@@ -7,6 +7,7 @@ config homeproxy 'infra'
 	option tproxy_port '5332'
 	option dns_port '5333'
 	option china_dns_port '5334'
+	option udp_timeout '300'
 	option tun_name 'singtun0'
 	option tun_addr4 '172.19.0.1/30'
 	option tun_addr6 'fdfe:dcba:9876::1/126'
diff --git a/root/etc/homeproxy/scripts/generate_client.uc b/root/etc/homeproxy/scripts/generate_client.uc
index bd72628d..8958435e 100755
--- a/root/etc/homeproxy/scripts/generate_client.uc
+++ b/root/etc/homeproxy/scripts/generate_client.uc
@@ -93,7 +93,10 @@ const cache_file_store_rdrc = uci.get(uciconfig, uciexp, 'cache_file_store_rdrc'
 const mixed_port = uci.get(uciconfig, uciinfra, 'mixed_port') || '5330';
 let self_mark, redirect_port, tproxy_port,
     tun_name, tun_addr4, tun_addr6, tun_mtu, tun_gso,
-    tcpip_stack, endpoint_independent_nat;
+    tcpip_stack, endpoint_independent_nat, udp_timeout;
+udp_timeout = uci.get(uciconfig, 'infra', 'udp_timeout') || '300';
+if (routing_mode === 'custom')
+	udp_timeout = uci.get(uciconfig, uciroutingsetting, 'udp_timeout') || '300';
 if (match(proxy_mode, /redirect/)) {
 	self_mark = uci.get(uciconfig, 'infra', 'self_mark') || '100';
 	redirect_port = uci.get(uciconfig, 'infra', 'redirect_port') || '5331';
@@ -486,6 +489,7 @@ push(config.inbounds, {
 	tag: 'mixed-in',
 	listen: '::',
 	listen_port: int(mixed_port),
+	udp_timeout: udp_timeout + 's',
 	sniff: true,
 	sniff_override_destination: (sniff_override === '1'),
 	set_system_proxy: false
@@ -509,6 +513,7 @@ if (match(proxy_mode, /tproxy/))
 		listen: '::',
 		listen_port: int(tproxy_port),
 		network: 'udp',
+		udp_timeout: udp_timeout + 's',
 		sniff: true,
 		sniff_override_destination: (sniff_override === '1')
 	});
@@ -524,6 +529,7 @@ if (match(proxy_mode, /tun/))
 		gso: (tun_gso === '1'),
 		auto_route: false,
 		endpoint_independent_nat: strToBool(endpoint_independent_nat),
+		udp_timeout: udp_timeout + 's',
 		stack: tcpip_stack,
 		sniff: true,
 		sniff_override_destination: (sniff_override === '1'),
diff --git a/root/etc/homeproxy/scripts/generate_server.uc b/root/etc/homeproxy/scripts/generate_server.uc
index 077f6898..7e9b735b 100755
--- a/root/etc/homeproxy/scripts/generate_server.uc
+++ b/root/etc/homeproxy/scripts/generate_server.uc
@@ -49,6 +49,7 @@ uci.foreach(uciconfig, uciserver, (cfg) => {
 		tcp_fast_open: strToBool(cfg.tcp_fast_open),
 		tcp_multi_path: strToBool(cfg.tcp_multi_path),
 		udp_fragment: strToBool(cfg.udp_fragment),
+		udp_timeout: cfg.udp_timeout ? (cfg.udp_timeout + 's') : null,
 		sniff: true,
 		sniff_override_destination: (cfg.sniff_override === '1'),
 		domain_strategy: cfg.domain_strategy,