1. https://downloads.openwrt.org/releases/19.07.4/targets/x86/64/
2. https://downloads.openwrt.org/releases/19.07.4/targets/x86/64/openwrt-19.07.4-x86-64-combined-squashfs.img.gz

gzip -d openwrt-19.07.4-x86-64-combined-squashfs.img.gz

After install the image in the VMM, need to update the network config(/etc/config/network)

1. gateway
2. dns

config interface 'lan'
	option type 'bridge'
	option ifname 'eth0'
	option proto 'static'
	option ipaddr '192.168.2.1'
	option netmask '255.255.255.0'
	option ip6assign '60'
	option multipath 'on'
	option gateway '192.168.1.1'
	list dns '8.8.8.8'

config interface 'wan'
        option ifname 'eth1'
	option proto 'dhcp'

1. https://openwrt.org/docs/guide-user/luci/luci.essentials

opkg update
opkg install luci

``` opkg install curl unzip wget-ssl ipset

```

Download the v2ray from

1. https://github.com/v2ray/v2ray-core/releases

I use my VPS to download it first

wget https://ef.pjq.me/download/openwrt/v2ray-linux-64.zip
unzip v2ray-linux-64.zip -d v2ray

opkg install kmod-tcp-bbr
insmod kmod-tcp-bbr
lsmod|grep bbr

vim /etc/sysctl.conf

And add the following:

net.core.default_qdisc=fq_codel
net.ipv4.tcp_congestion_control=bbr

Then reload the setting

sysctl -p

lsmod|grep bbr
tcp_bbr                16384 35 

vim /etc/config/dhcp

Add the `list addnhosts '/etc/myhosts'`

config dnsmasq                                                                                                     ...                                                                                           
        list addnhosts '/etc/myhosts'    

vim /etc/myhosts

Then restart the dnsmasq service

/etc/init.d/dnsmasq restart

The network eth0 doesn't work, and saw the log

device eth0 entered promiscuous mode

After google, I try to disable promiscuous mode. ifconfig eth0 -promisc

1. https://help.aliyun.com/document_detail/41541.html
2. https://ieevee.com/tech/2016/11/24/promisc.html