From fdb317f439fbb0e28ac3b154f13b963fe31facb4 Mon Sep 17 00:00:00 2001
From: Kaarle Ritvanen <kaarle.ritvanen@datakunkku.fi>
Date: Wed, 5 Sep 2018 16:53:06 +0300
Subject: setup-dmvpn: load nf_conntrack_proto_gre

---
 setup-dmvpn | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/setup-dmvpn b/setup-dmvpn
index 022c703..981ce19 100755
--- a/setup-dmvpn
+++ b/setup-dmvpn
@@ -39,6 +39,7 @@ if [ $VPNC_TYPE = hub ]; then
 fi
 
 
+GRE_MODULE=nf_conntrack_proto_gre
 PMTU_SYSCTL=net.ipv4.ip_forward_use_pmtu
 
 
@@ -280,6 +281,11 @@ EOF
 	fi
 
 	awall translate
+
+	if modprobe $GRE_MODULE; then
+		echo $GRE_MODULE > /etc/modules-load.d/dmvpn.conf
+	fi
+
 	enable_firewall iptables
 	[ -f /etc/iptables/rules6-save -o "$SITE_PREFIX_LEN_IPV6" ] && \
 		enable_firewall ip6tables
-- 
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