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-rwxr-xr-xsrc/conf_mode/interfaces-vxlan.py4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/conf_mode/interfaces-vxlan.py b/src/conf_mode/interfaces-vxlan.py
index 6cd931049..1f097c4e3 100755
--- a/src/conf_mode/interfaces-vxlan.py
+++ b/src/conf_mode/interfaces-vxlan.py
@@ -89,6 +89,10 @@ def verify(vxlan):
raise ConfigError(f'Only one VXLAN tunnel is supported when "external" '\
f'CLI option is used. Additional tunnels: {other_tunnels}')
+ if 'gpe' in vxlan and 'external' not in vxlan:
+ raise ConfigError(f'VXLAN-GPE is only supported when "external" '\
+ f'CLI option is used.')
+
if 'source_interface' in vxlan:
# VXLAN adds at least an overhead of 50 byte - we need to check the
# underlaying device if our VXLAN package is not going to be fragmented!