gateway and dns in android

How to setup gateway and dns on android emulator correctly if my eth1 on emulator is connected to tap on host via: emulator -dns-server 8.8.8.8 -selinux permissive -qemu -device virtio-net-pci,netdev=hn0 -netdev tap,id=hn0,ifname=tap0,script=no,downscript=no and tap is connected to docker bridge on host : bridge name bridge id STP enabled interfaces br-bf01bc4d9244 8000.0242c51c8c31 no tap0 veth7b9d706 ip is brought up via link here for now i have : generic_car_x86_64:/ # getprop net.dns1 8.8.8.8 generic_car_x86_64:/ # getprop net.dns2 1.1.1.1 generic_car_x86_64:/ # ping 8.8.8.8 PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data. 64 bytes from 8.8.8.8: icmp_seq=1 ttl=114 time=24.2 ms 64 bytes from 8.8.8.8: icmp_seq=2 ttl=114 time=62.3 ms ^C --- 8.8.8.8 ping statistics --- 2 packets transmitted, 2 received, 0% packet loss, time 1001ms rtt min/avg/max/mdev = 24.216/43.299/62.382/19.083 ms generic_car_x86_64:/ # ping 1.1.1.1 PING 1.1.1.1 (1.1.1.1) 56(84) bytes of data. 64 bytes from 1.1.1.1: icmp_seq=1 ttl=58 time=11.0 ms 64 bytes from 1.1.1.1: icmp_seq=2 ttl=58 time=10.2 ms ^C --- 1.1.1.1 ping statistics --- 2 packets transmitted, 2 received, 0% packet loss, time 1001ms rtt min/avg/max/mdev = 10.234/10.627/11.020/0.393 ms generic_car_x86_64:/ # ping google.com ping: unknown host google.com 2|generic_car_x86_64:/ # how this is working????