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-rwxr-xr-xsrc/conf_mode/vpn_ipsec.py4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/conf_mode/vpn_ipsec.py b/src/conf_mode/vpn_ipsec.py
index 99b82ca2d..dc134fd1f 100755
--- a/src/conf_mode/vpn_ipsec.py
+++ b/src/conf_mode/vpn_ipsec.py
@@ -553,13 +553,15 @@ def generate(ipsec):
if not local_prefixes or not remote_prefixes:
continue
- passthrough = []
+ passthrough = None
for local_prefix in local_prefixes:
for remote_prefix in remote_prefixes:
local_net = ipaddress.ip_network(local_prefix)
remote_net = ipaddress.ip_network(remote_prefix)
if local_net.overlaps(remote_net):
+ if passthrough is None:
+ passthrough = []
passthrough.append(local_prefix)
ipsec['site_to_site']['peer'][peer]['tunnel'][tunnel]['passthrough'] = passthrough