Solution
Please Install the Updated Packages.
Insight
The iproute2 package released with mandriva 2008.1 had a problem which prevented its usage with kernels of versions 2.6.21 and older, notably the Xen kernel (2.6.18).
This update fixes the issue.
Affected
iproute2 on Mandriva Linux 2008.1,
Mandriva Linux 2008.1/X86_64