* Addresses: Treat Teredo addresses 2001:0::/32 as local

2013-08-30 10:20:43 +00:00
parent def30c5903
commit 8aec1e2eb6
1 changed files with 3 additions and 0 deletions
--- a/router/java/src/net/i2p/router/transport/TransportUtil.java
+++ b/router/java/src/net/i2p/router/transport/TransportUtil.java
@@ -130,6 +130,9 @@ public abstract class TransportUtil {
                // not recognized as local by InetAddress
                if ((addr[0] & 0xfe) == 0xfc)
                    return false;
+                // disallow 2001:0::/32 (Teredo RFC 4380)
+                if (addr[0] == 0x20 && addr[1] == 0x01 && addr[2] == 0x00 && addr[3] == 0x00)
+                    return false;
                try {
                    InetAddress ia = InetAddress.getByAddress(addr);
                    return