These are the packages that would be merged, in order:

Calculating dependencies ... done!
Dependency resolution took 1.52 s (backtrack: 0/20).

[ebuild     UD ] sys-apps/iproute2-6.18.0::gentoo [6.19.0::gentoo] USE="iptables -atm -berkdb -bpf -caps -elf -minimal -nfs (-selinux)" 924 KiB

Total: 1 package (1 downgrade), Size of downloads: 924 KiB