1. Forum
  2. USENET
  3. alt.comp.os.windows-11

  • Re: PSA: Simple Wi-Fi gateway killswitch that works with OpenVPN config files

    From Maria Sophia@mariasophia@comprehension.com to alt.comp.os.windows-10,alt.comp.os.windows-11,alt.comp.microsoft.windows on Fri Jul 24 10:59:41 2026
    From Newsgroup: alt.comp.os.windows-11

    As a related aside, if your network ever does go to hell in a handbasket,
    the following manual commands seem to surgically fix mine in a flash.

    I renamed interfaces so that I don't have to deal with spaces:
    netsh interface set interface name="Ethernet 2" newname="eth0"
    netsh interface set interface name="Wi-Fi 2" newname="wlan0"

    Set your network for Ethernet (in my case, via a wireless router):
    netsh interface set interface "wlan0" admin=disabled
    netsh interface set interface "eth0" admin=enabled
    netsh interface ipv4 set address name="eth0" static 192.168.1.15 255.255.255.0 192.168.1.1
    netsh interface ipv4 set dns name="eth0" static 1.1.1.1
    netsh interface ipv4 add dns name="eth0" 1.0.0.1
    netsh interface ipv4 show dnsservers
    netsh interface ipv4 show config name="eth0"
    netsh interface ipv4 show config
    netsh interface ipv4 show dnsservers
    ping -n 1 192.168.1.1
    ping -n 1 1.1.1.1
    ping -n 1 www.google.com
    wmic nic where (NetEnabled=true) get Name, Speed
    curl -o NUL http://speedtest.tele2.net/1MB.zip
    curl -o NUL http://speedtest.tele2.net/10MB.zip
    curl -o NUL http://speedtest.tele2.net/100MB.zip
    speedtest.exe (from <https://www.speedtest.net/apps/cli>)
    route print -4
    ipconfig /all
    At this point you can now run psiphon.bat or vpn.bat

    Set your network for Wi-Fi (in my case, via a Wi-Fi NIC card):
    netsh interface set interface "eth0" admin=disabled
    netsh interface set interface "wlan0" admin=enabled
    netsh interface ipv4 set address name="wlan0" static 192.168.1.16 255.255.255.0 192.168.1.1
    netsh interface ipv4 set dns name="wlan0" static 1.1.1.1
    netsh interface ipv4 add dns name="wlan0" 1.0.0.1
    netsh wlan connect name="my.ssid_nomap"
    netsh wlan connect name="starbucks.office_nomap"
    netsh interface ipv4 show config
    netsh interface ipv4 show config name="wlan0"
    netsh interface ipv4 show dnsservers
    ping -n 1 192.168.1.1
    ping -n 1 1.1.1.1
    ping -n 1 www.google.com
    wmic nic where (NetEnabled=true) get Name, Speed
    curl -o NUL http://speedtest.tele2.net/1MB.zip
    curl -o NUL http://speedtest.tele2.net/10MB.zip
    curl -o NUL http://speedtest.tele2.net/100MB.zip
    speedtest.exe (from <https://www.speedtest.net/apps/cli>)
    route print -4
    ipconfig /all
    At this point you can now run psiphon.bat or vpn.bat

    ============================================================
    Here's a networking cheat sheet if anyone needs the commands. ============================================================
    Layer 1: link & adapter state
    check NIC driver + link status
    wmic nic get Name,NetEnabled,Speed
    show adapter statistics (errors/drops)
    netstat -e
    show interface statistics
    netsh interface ipv4 show interfaces ============================================================
    Layer 2: arp & neighbor discovery
    show arp table
    arp -a
    show ipv4 neighbor cache
    netsh interface ipv4 show neighbors ============================================================
    Layer 3: ip configuration & routing
    show ipv4 global settings
    netsh interface ipv4 show global
    show ipv4 addresses
    netsh interface ipv4 show address
    show routing table (ipv4 only)
    route print -4
    show active tcp/udp endpoints
    netstat -an
    ============================================================
    Layer 4: dhcp
    check dhcp server discovery
    netsh dhcp show server
    show dhcp-assigned addresses
    netsh interface ip show addresses
    force dhcp renew
    ipconfig /release && ipconfig /renew ============================================================
    Layer 5: dns
    test dns resolution
    nslookup example.com
    show dns cache
    ipconfig /displaydns
    flush dns cache
    ipconfig /flushdns ============================================================
    Layer 6: firewall
    show firewall rules
    netsh advfirewall firewall show rule name=all
    show firewall profile state
    netsh advfirewall show allprofiles ============================================================
    Layer 7: winsock
    show winsock providers
    netsh winsock show catalog
    reset winsock (fixes corruption)
    netsh winsock reset ============================================================
    Layer 8: connectivity tests
    ping gateway
    ping <gateway>
    ping ipv4-only target
    ping -4 8.8.8.8
    trace ipv4 route
    tracert 8.8.8.8
    test ipv4 http
    curl -4 http://example.com ============================================================
    Layer 9: system logs
    open event viewer
    eventvwr.msc
    check dhcp logs
    (event viewer i= microsoft i= windows i= dhcp-client)
    check tcp/ip logs
    (event viewer i= system i= tcpip)
    check ndis driver logs
    (event viewer i= system i= ndis) ============================================================
    Layer 10: advanced routing & bindings
    show interface metrics
    netsh interface ipv4 show interfaces
    show binding joins
    netsh interface ip show joins
    show tcp global parameters
    netsh interface tcp show global ===========================================================
    --
    Some people are on Usenet for their own amusement but others
    are on Usenet to help others daily and to learn from them.
    --- Synchronet 3.22a-Linux NewsLink 1.2