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

Calculating dependencies ... done!
Dependency resolution took 0.98 s (backtrack: 0/20).

[ebuild  N     ] net-libs/libnfnetlink-1.0.2::gentoo  USE="-verify-sig" 292 KiB
[ebuild  N     ] net-libs/libnetfilter_conntrack-1.1.1::gentoo  USE="-verify-sig" 307 KiB
[ebuild  N     ] net-analyzer/iptstate-2.2.7::gentoo  30 KiB

Total: 3 packages (3 new), Size of downloads: 628 KiB