addresses:

- blocklist 192.88.88.0/24 6to4 anycast - invalidate 2002::/16
2013-05-12 00:24:01 +00:00
parent fcaebb4416
commit 6ceea60c92
3 changed files with 5 additions and 1 deletions
--- a/router/java/src/net/i2p/router/transport/TransportUtil.java
+++ b/router/java/src/net/i2p/router/transport/TransportUtil.java
@ -111,6 +111,9 @@ public abstract class TransportUtil {
            return true; // or at least possible to be true
        } else if (addr.length == 16) {
            if (allowIPv6) {
+                // disallow 2002::/16 (6to4 RFC 3056)
+                if (addr[0] == 0x20 && addr[1] == 0x02)
+                    return false;
                try {
                    InetAddress ia = InetAddress.getByAddress(addr);
                    return