diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index 4b8f18ff4789..ee75ccdf5188 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -888,6 +888,7 @@ struct netns_ipvs {
 	unsigned int		sysctl_sync_refresh_period;
 	int			sysctl_sync_retries;
 	int			sysctl_nat_icmp_send;
+	int			sysctl_pmtu_disc;
 
 	/* ip_vs_lblc */
 	int			sysctl_lblc_expiration;
@@ -974,6 +975,11 @@ static inline int sysctl_sync_sock_size(struct netns_ipvs *ipvs)
 	return ipvs->sysctl_sync_sock_size;
 }
 
+static inline int sysctl_pmtu_disc(struct netns_ipvs *ipvs)
+{
+	return ipvs->sysctl_pmtu_disc;
+}
+
 #else
 
 static inline int sysctl_sync_threshold(struct netns_ipvs *ipvs)
@@ -1016,6 +1022,11 @@ static inline int sysctl_sync_sock_size(struct netns_ipvs *ipvs)
 	return 0;
 }
 
+static inline int sysctl_pmtu_disc(struct netns_ipvs *ipvs)
+{
+	return 1;
+}
+
 #endif
 
 /*
diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index d6d5ccabe067..03d3fc6d9d64 100644
--- a/net/netfilter/ipvs/ip_vs_ctl.c
+++ b/net/netfilter/ipvs/ip_vs_ctl.c
@@ -1801,6 +1801,12 @@ static struct ctl_table vs_vars[] = {
 		.mode		= 0644,
 		.proc_handler	= proc_dointvec,
 	},
+	{
+		.procname	= "pmtu_disc",
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= proc_dointvec,
+	},
 #ifdef CONFIG_IP_VS_DEBUG
 	{
 		.procname	= "debug_level",
@@ -3726,6 +3732,8 @@ static int __net_init ip_vs_control_net_init_sysctl(struct net *net)
 	ipvs->sysctl_sync_retries = clamp_t(int, DEFAULT_SYNC_RETRIES, 0, 3);
 	tbl[idx++].data = &ipvs->sysctl_sync_retries;
 	tbl[idx++].data = &ipvs->sysctl_nat_icmp_send;
+	ipvs->sysctl_pmtu_disc = 1;
+	tbl[idx++].data = &ipvs->sysctl_pmtu_disc;
 
 
 	ipvs->sysctl_hdr = register_net_sysctl(net, "net/ipv4/vs", tbl);
diff --git a/net/netfilter/ipvs/ip_vs_xmit.c b/net/netfilter/ipvs/ip_vs_xmit.c
index c2275ba048e9..543a554008af 100644
--- a/net/netfilter/ipvs/ip_vs_xmit.c
+++ b/net/netfilter/ipvs/ip_vs_xmit.c
@@ -795,6 +795,7 @@ int
 ip_vs_tunnel_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
 		  struct ip_vs_protocol *pp)
 {
+	struct netns_ipvs *ipvs = net_ipvs(skb_net(skb));
 	struct rtable *rt;			/* Route to the other host */
 	__be32 saddr;				/* Source for tunnel */
 	struct net_device *tdev;		/* Device to other host */
@@ -830,10 +831,9 @@ ip_vs_tunnel_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
 		skb_dst(skb)->ops->update_pmtu(skb_dst(skb), NULL, skb, mtu);
 
 	/* Copy DF, reset fragment offset and MF */
-	df = old_iph->frag_off & htons(IP_DF);
+	df = sysctl_pmtu_disc(ipvs) ? old_iph->frag_off & htons(IP_DF) : 0;
 
-	if ((old_iph->frag_off & htons(IP_DF) &&
-	    mtu < ntohs(old_iph->tot_len) && !skb_is_gso(skb))) {
+	if (df && mtu < ntohs(old_iph->tot_len) && !skb_is_gso(skb)) {
 		icmp_send(skb, ICMP_DEST_UNREACH,ICMP_FRAG_NEEDED, htonl(mtu));
 		IP_VS_DBG_RL("%s(): frag needed\n", __func__);
 		goto tx_error_put;