VPN connected to GoogleOneVPN(PixelVPN) cannot share.

[Jialin0502]

# Bug

I found that the upstream of Google VPN and the commonly used VPN software are different. After open wlan, Hot spot will be no network connection. (used latest master version 508967e )

Using other VPNs can share normally.

Need to provide log? This VPN not very common,I can together test this.

Screenshot

[Mygod]

Logs please.

[Jialin0502]

Is this ok?
vpnhotspot_log.zip
Thanks for viewing.

[Mygod]

Thanks! Can you try clicking "clean/reapply routing rules" and see if that fixes it? Otherwise please export another log, thanks again!

[GD2021]

Connect your phone to a Wi-Fi network and log in to the Google VPN. Once the app is open, enable the wireless tethering feature. The other phone, when connected to this Wi-Fi, will not have internet access.
vpnhotspot_log.zip

[GD2021]

[Mygod]

Yes, but can you try clicking "clean/reapply routing rules" in the settings page of this app and see if that fixes it? Otherwise please export a new log. Thanks!

[GD2021]

vpnhotspot-5041622348703627665.log

Thank you for your concern, I've tried, but it still doesn't work. Thank you again for your concern.

[Mygod]

Indeed it looks like the response packets are not going through to your downstream devices. Not sure how to resolve this since I do not own a Pixel currently.

[httpsColon]

手机系统被厂商魔改导致的，我就成功过一次，v2ng的vpn模式网络共享给电脑成功了，之后再也无法复现

[yitong2333]

Indeed it looks like the response packets are not going through to your downstream devices. Not sure how to resolve this since I do not own a Pixel currently.

I think you can open a proxy5 server by using everyproxy and then use VPNHotspot's hotspot to route the socks5 server, but VPNHotspot can't currently share the socks5 server via wifi hotspot

[OXERIS]

手机系统被厂商魔改导致的，我就成功过一次，v2ng的vpn模式网络共享给电脑成功了，之后就再也无法恢复了

我测试了一般的vpn和代理工具，比如clash，v2ray都可以，但是Google vpn不行

[Mygod]

How are you guys using Google VPN if it requires strong integrity? 🤔

EDIT: Okay figured it out.

[Mygod]

# tcpdump -nvvi any host 34.117.59.81
tcpdump: data link type LINUX_SLL2
tcpdump: listening on any, link-type LINUX_SLL2 (Linux cooked v2), snapshot length 262144 bytes
23:24:41.825657 wlan2 In  IP (tos 0x0, ttl 64, id 16294, offset 0, flags [DF], proto ICMP (1), length 84)
    192.168.136.148 > 34.117.59.81: ICMP echo request, id 3799, seq 1503, length 64
23:24:41.825887 ipsec7 Out IP (tos 0x0, ttl 63, id 16294, offset 0, flags [DF], proto ICMP (1), length 84)
    100.74.24.67 > 34.117.59.81: ICMP echo request, id 3799, seq 1503, length 64
23:24:41.840059 ipsec7 In  IP (tos 0x0, ttl 121, id 0, offset 0, flags [none], proto ICMP (1), length 84)
    34.117.59.81 > 100.74.24.67: ICMP echo reply, id 3799, seq 1503, length 64
23:24:42.917758 wlan2 In  IP (tos 0x0, ttl 64, id 16436, offset 0, flags [DF], proto ICMP (1), length 84)
    192.168.136.148 > 34.117.59.81: ICMP echo request, id 3799, seq 1504, length 64
23:24:42.917985 ipsec7 Out IP (tos 0x0, ttl 63, id 16436, offset 0, flags [DF], proto ICMP (1), length 84)
    100.74.24.67 > 34.117.59.81: ICMP echo request, id 3799, seq 1504, length 64
23:24:42.946428 ipsec7 In  IP (tos 0x0, ttl 121, id 0, offset 0, flags [none], proto ICMP (1), length 84)
    34.117.59.81 > 100.74.24.67: ICMP echo reply, id 3799, seq 1504, length 64

I've played around for a few hours and can't figure out why reply packets are not being routed correctly. Given that VPN by Google is a system app, it is likely that there is some advanced things that they are doing that are not accessible to a normal VPN app. I recommend simply using a different VPN like 1.1.1.1 for now.