* Transports: Disallow Carrier Grade NAT (RFC 6598) addresses

2014-06-13 13:39:15 +00:00
parent 83ccfb4596
commit 2a269ff1a9
1 changed files with 2 additions and 0 deletions
--- a/router/java/src/net/i2p/router/transport/TransportUtil.java
+++ b/router/java/src/net/i2p/router/transport/TransportUtil.java
@ -124,6 +124,8 @@ public abstract class TransportUtil {
            // Assigned to UK Ministry of Defence
            // http://blog.logmein.com/products/changes-to-hamachi-on-november-19th
            if (a0 == 25) return false;
+            // Carrier Grade NAT RFC 6598
+            if (a0 == 100 && a1 >= 64 && a1 <= 127) return false;
            return true; // or at least possible to be true
        } else if (addr.length == 16) {
            if (allowIPv6) {