[PATCH pve-network] sdn: vxlan: fix max value for vxlan-port

[PATCH pve-network] sdn: vxlan: fix max value for vxlan-port

[Hannes Laimer]

As per RFC 768[1] the port is only 16 bits, so the maximum value is
65535. `ifupdown2` failed if 65536 was configured:

```
vxlan_yuuur : error: vxlan_yuuur: vxlan creation failed: 'H' format requires 0 <= number <= 65535
yuuur : error: yuuur: bridge port vxlan_yuuur does not exist
```

[1] https://datatracker.ietf.org/doc/html/rfc768

Signed-off-by: Hannes Laimer <h.laimer@proxmox.com>
---
 src/PVE/API2/Network/SDN/Zones.pm        | 2 +-
 src/PVE/Network/SDN/Zones/VxlanPlugin.pm | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/PVE/API2/Network/SDN/Zones.pm b/src/PVE/API2/Network/SDN/Zones.pm
index b897cbd..e0b417b 100644
--- a/src/PVE/API2/Network/SDN/Zones.pm
+++ b/src/PVE/API2/Network/SDN/Zones.pm
@@ -187,7 +187,7 @@ my $ZONE_PROPERTIES = {
         description =>
             "UDP port that should be used for the VXLAN tunnel (default 4789). VXLAN zone only.",
         minimum => 1,
-        maximum => 65536,
+        maximum => 65535,
         type => 'integer',
         optional => 1,
         default => 4789,
diff --git a/src/PVE/Network/SDN/Zones/VxlanPlugin.pm b/src/PVE/Network/SDN/Zones/VxlanPlugin.pm
index a408261..1d6d588 100644
--- a/src/PVE/Network/SDN/Zones/VxlanPlugin.pm
+++ b/src/PVE/Network/SDN/Zones/VxlanPlugin.pm
@@ -35,7 +35,7 @@ sub properties {
         'vxlan-port' => {
             description => "UDP port that should be used for the VXLAN tunnel (default 4789).",
             minimum => 1,
-            maximum => 65536,
+            maximum => 65535,
             type => 'integer',
             default => 4789,
         },
-- 
2.47.3