Dear smallko, I am download your multi-channel implemention in ns2 from Multi-channel Multi-interface Simulation in NS2 (2.29) (I have prepared one ns2 version that has already included this module. Download the file fromhere. Decompress it and go into ns-allinone-2.29/ns-2.29 directory. Runthe ./configure; make clean; make depend; make to install.) but when i make i meet errors as follows: dsr/dsragent.cc: In member function ‘void DSRAgent::handleFlowForwarding(SRPacket&, int)’: dsr/dsragent.cc:828: 错误:‘XmitFlowFailureCallback’ 在此作用域中尚未声明 dsr/dsragent.cc: In member function ‘void DSRAgent::sendOutPacketWithRoute(SRPacket&, bool, Time)’: dsr/dsragent.cc:1385: 错误:‘XmitFailureCallback’ 在此作用域中尚未声明 dsr/dsragent.cc:1386: 错误:‘XmitFlowFailureCallback’ 在此作用域中尚未声明 dsr/dsragent.cc:1403: 错误:‘XmitFailureCallback’ 在此作用域中尚未声明 My linux is fedora core 5 ,I do not why? please help me! Thanks a lot! -- 此致 敬礼 王俊伟