diff --git a/src/config.c b/src/config.c
index 1e809986..990e0c83 100644
--- a/src/config.c
+++ b/src/config.c
@@ -65,6 +65,7 @@ const struct vpn_config invalid_cfg = {
 	.pppd_log = NULL,
 	.pppd_plugin = NULL,
 	.pppd_ipparam = NULL,
+	.pppd_keepalive = NULL,
 	.pppd_ifname = NULL,
 	.pppd_call = NULL,
 #endif
@@ -349,6 +350,9 @@ int load_config(struct vpn_config *cfg, const char *filename)
 		} else if (strcmp(key, "pppd-ipparam") == 0) {
 			free(cfg->pppd_ipparam);
 			cfg->pppd_ipparam = strdup(val);
+		} else if (strcmp(key, "pppd-keepalive") == 0) {
+			free(cfg->pppd_keepalive);
+			cfg->pppd_keepalive = strdup(val);
 		} else if (strcmp(key, "pppd-ifname") == 0) {
 			free(cfg->pppd_ifname);
 			cfg->pppd_ifname = strdup(val);
@@ -475,6 +479,7 @@ void destroy_vpn_config(struct vpn_config *cfg)
 	free(cfg->pppd_log);
 	free(cfg->pppd_plugin);
 	free(cfg->pppd_ipparam);
+	free(cfg->pppd_keepalive);
 	free(cfg->pppd_ifname);
 	free(cfg->pppd_call);
 #endif
@@ -546,6 +551,10 @@ void merge_config(struct vpn_config *dst, struct vpn_config *src)
 		free(dst->pppd_ipparam);
 		dst->pppd_ipparam = src->pppd_ipparam;
 	}
+	if (src->pppd_keepalive) {
+		free(dst->pppd_keepalive);
+		dst->pppd_keepalive = src->pppd_keepalive;
+	}
 	if (src->pppd_ifname) {
 		free(dst->pppd_ifname);
 		dst->pppd_ifname = src->pppd_ifname;
diff --git a/src/config.h b/src/config.h
index 25f3863a..1b3df7c3 100644
--- a/src/config.h
+++ b/src/config.h
@@ -105,6 +105,7 @@ struct vpn_config {
 	char	*pppd_log;
 	char	*pppd_plugin;
 	char	*pppd_ipparam;
+	char	*pppd_keepalive;
 	char	*pppd_ifname;
 	char	*pppd_call;
 #endif
diff --git a/src/main.c b/src/main.c
index d28e75d1..4b87aba7 100644
--- a/src/main.c
+++ b/src/main.c
@@ -38,7 +38,8 @@
 #define PPPD_USAGE \
 "                    [--pppd-use-peerdns=<0|1>] [--pppd-log=<file>]\n" \
 "                    [--pppd-ifname=<string>] [--pppd-ipparam=<string>]\n" \
-"                    [--pppd-call=<name>] [--pppd-plugin=<file>]\n"
+"                    [--pppd-call=<name>] [--pppd-plugin=<file>]\n" \
+"                    [--pppd-keepalive=<interval>]\n"
 
 #define PPPD_HELP \
 "  --pppd-use-peerdns=[01]       Whether to ask peer ppp server for DNS server\n" \
@@ -54,7 +55,9 @@
 "                                and ip-down scripts. See man (8) pppd.\n" \
 "  --pppd-call=<name>            Move most pppd options from pppd cmdline to\n" \
 "                                /etc/ppp/peers/<name> and invoke pppd with\n" \
-"                                'call <name>'.\n"
+"                                'call <name>'.\n" \
+"  --pppd-keepalive=<interval>   Keep connection alive using LCP echo-request frames\n" \
+"                                sent by pppd every <interval> seconds.\n"
 #elif HAVE_USR_SBIN_PPP
 #define PPPD_USAGE \
 "                    [--ppp-system=<system>]\n"
@@ -216,6 +219,7 @@ int main(int argc, char **argv)
 		.pppd_log = NULL,
 		.pppd_plugin = NULL,
 		.pppd_ipparam = NULL,
+		.pppd_keepalive = NULL,
 		.pppd_ifname = NULL,
 		.pppd_call = NULL,
 #endif
@@ -273,6 +277,7 @@ int main(int argc, char **argv)
 		{"pppd-log",        required_argument, NULL, 0},
 		{"pppd-plugin",     required_argument, NULL, 0},
 		{"pppd-ipparam",    required_argument, NULL, 0},
+		{"pppd-keepalive",  required_argument, NULL, 0},
 		{"pppd-ifname",     required_argument, NULL, 0},
 		{"pppd-call",       required_argument, NULL, 0},
 		{"plugin",          required_argument, NULL, 0}, // deprecated
@@ -345,6 +350,11 @@ int main(int argc, char **argv)
 				cli_cfg.pppd_ipparam = strdup(optarg);
 				break;
 			}
+			if (strcmp(long_options[option_index].name,
+			           "pppd-keepalive") == 0) {
+				cli_cfg.pppd_keepalive = strdup(optarg);
+				break;
+			}
 			if (strcmp(long_options[option_index].name,
 			           "pppd-call") == 0) {
 				cli_cfg.pppd_call = strdup(optarg);
diff --git a/src/tunnel.c b/src/tunnel.c
index 32a5e39e..51630ef4 100644
--- a/src/tunnel.c
+++ b/src/tunnel.c
@@ -302,6 +302,16 @@ static int pppd_run(struct tunnel *tunnel)
 				return 1;
 			}
 		}
+		if (tunnel->config->pppd_keepalive) {
+			if (ofv_append_varr(&pppd_args, "lcp-echo-interval")) {
+				free(pppd_args.data);
+				return 1;
+			}
+			if (ofv_append_varr(&pppd_args, tunnel->config->pppd_keepalive)) {
+				free(pppd_args.data);
+				return 1;
+			}
+		}
 		if (tunnel->config->pppd_ifname) {
 			if (ofv_append_varr(&pppd_args, "ifname")) {
 				free(pppd_args.data);