From 8c5adaf8c6598831389c731bb032cb2e6d11ee49 Mon Sep 17 00:00:00 2001
From: Richard Holland <richard.holland@starstone.co.nz>
Date: Wed, 11 Dec 2024 12:02:26 +1100
Subject: [PATCH] reduce max payload

---
 src/ripple/server/impl/UDPDoor.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/ripple/server/impl/UDPDoor.h b/src/ripple/server/impl/UDPDoor.h
index 222c6614b..cc01963ab 100644
--- a/src/ripple/server/impl/UDPDoor.h
+++ b/src/ripple/server/impl/UDPDoor.h
@@ -186,7 +186,8 @@ private:
         }
 
         const size_t HEADER_SIZE = 16;
-        const size_t MAX_DATAGRAM_SIZE = 65507;  // Standard UDP datagram size
+        const size_t MAX_DATAGRAM_SIZE =
+            65487;  // Allow for ipv6 header 40 bytes + 8 bytes of udp header
         const size_t MAX_PAYLOAD_SIZE =
             MAX_DATAGRAM_SIZE - HEADER_SIZE;  // 65,491 bytes