How to get the geoip db

[kknd li]

Hi， every body
i use asus ac-86u router with merlin 382.1, now i want to use geoip to filter some ip.
so i need to set some geoip config and download the geoip db

i can find that about how to get geoip db in the page
```url
https://github.com/RMerl/asuswrt-me...c/router/iptables/extensions/libipt_geoip.man
```
as
```
The only extra files you need is a binary db (geoipdb.bin) & its index file (geoipdb.idx).
Both files are generated from a countries & subnets database with the csv2bin tool,
available at www.cookinglinux.org/geoip/. Both files MUST also be moved in /var/geoip/
as the shared library is statically looking for that pathname (ex.: /var/geoip/geoipdb.bin).
```
but where is to find the geoipdb.bin and geoipdb.idx or to get csv2bin tool

thank