From 6b1ed5e7e68fc5992a7bdabe4a05a7a3e1e1d898 Mon Sep 17 00:00:00 2001
From: hide <33016470+hdfln@users.noreply.github.com>
Date: Wed, 24 Mar 2021 01:05:25 +0900
Subject: [PATCH] network: fix ipv6 tunnel encapsulation limit (#19087)

The encapsulation limit of IPv6 tunnel can not be set to 4, which is the default value of the encapsulation limit.
---
 src/network/netdev/tunnel.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/network/netdev/tunnel.c b/src/network/netdev/tunnel.c
index 2fab269397f..23718081b90 100644
--- a/src/network/netdev/tunnel.c
+++ b/src/network/netdev/tunnel.c
@@ -389,7 +389,7 @@ static int netdev_ip6tnl_fill_message_create(NetDev *netdev, Link *link, sd_netl
         if (t->allow_localremote >= 0)
                 SET_FLAG(t->flags, IP6_TNL_F_ALLOW_LOCAL_REMOTE, t->allow_localremote);
 
-        if (t->encap_limit != IPV6_DEFAULT_TNL_ENCAP_LIMIT) {
+        if (t->encap_limit != 0) {
                 r = sd_netlink_message_append_u8(m, IFLA_IPTUN_ENCAP_LIMIT, t->encap_limit);
                 if (r < 0)
                         return log_netdev_error_errno(netdev, r, "Could not append IFLA_IPTUN_ENCAP_LIMIT attribute: %m");