hi, Thanks for your answer. The IFA_LOCAL is the address of the the tunnel from a host to another, it is one of the addresses on the other interfaces. nary tra > > I dont understand clearly the IFA_LOCAL and IFA_ADDRESS of the flags of > > ifaddrmsg in rtnetlink. What is the different between them ? I make a test > > to print the IFA_LOCAL and IFA_ADDRESS value on diffrent machines, they are > > always the same. > > It is not always same. e.g. tunl or sit. > > --yoshfuji > - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html