help 。arpd 问题。。

piscesm

当我装arpd时，出现了这样的问题：
rpm -ivh arpd-0.2-2.fc6.rf.i386.rpm
warning: arpd-0.2-2.fc6.rf.i386.rpm: Header V3 DSA signature: NOKEY, key ID 1aa78495
Preparing...                ########################################### [100%]
        file /usr/sbin/arpd from install of arpd-0.2-2.fc6.rf conflicts with file from package iproute-2.6.16-6.fc6
        file /usr/sbin/arpd from install of arpd-0.2-2.fc6.rf conflicts with file from package iproute-2.6.19-1.fc6

说有冲突。不知道怎么办？请帮助下。。。谢谢。。。