X-Git-Url: http://g0dil.de/git?a=blobdiff_plain;f=senf%2FSocket%2FProtocols%2FINet%2FINet6Address.cci;h=290db51e0c15928bf26a2a6ce426eb607c005fe4;hb=ed7919f7207bdda00e275d9a6a31cd120d2e6afa;hp=9fc8dd7f5a082fb52f5d2a26401c0a479b57e7f7;hpb=874b9d37b59223d9b0dce3bddafa130045419750;p=senf.git

diff --git a/senf/Socket/Protocols/INet/INet6Address.cci b/senf/Socket/Protocols/INet/INet6Address.cci
index 9fc8dd7..290db51 100644
--- a/senf/Socket/Protocols/INet/INet6Address.cci
+++ b/senf/Socket/Protocols/INet/INet6Address.cci
@@ -77,7 +77,7 @@ prefix_ senf::INet6Address senf::INet6Address::from_mac(senf::MACAddress const &
     INet6Address addr;
     addr[0] = 0xfe;
     addr[1] = 0x80;
-    addr[8] = mac[0];
+    addr[8] = mac[0] ^ 0x2;  // invert the "u" (universal/local) bit; see RFC 4291 Appx. A
     addr[9] = mac[1];
     addr[10] = mac[2];
     addr[11] = 0xff;
@@ -93,7 +93,8 @@ prefix_ senf::INet6Address senf::INet6Address::from_eui64(senf::EUI64 const & eu
     INet6Address addr;
     addr[0] = 0xfe;
     addr[1] = 0x80;
-    std::copy(eui.begin(), eui.end(), addr.begin()+8);
+    addr[8] = eui[0] ^ 0x2;  // invert the "u" (universal/local) bit; see RFC 4291 Appx. A
+    std::copy(eui.begin()+1, eui.end(), addr.begin()+9);
     return addr;
 }