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titlehostapd configuration

hostapd configuration is Debian is in /etc/hostapd/hostapd.conf. But remember this is no more under systemd startup control as we disabled entirely systemd networking.

Code Block
languagebash
themeMidnight
titlehostapd.conf
cat /etc/hostapd/hostapd.conf
#change wlan0 to your wireless device
interface=wlan0
# "g" simply means 2.4GHz band
hw_mode=g
# the channel to use
channel=acs_survey
# limit the frequencies used to those allowed in the country
ieee80211d=1
# the country code
country_code=FR
# 802.11n support
ieee80211n=1
# QoS support, also required for full speed on 802.11n/ac/ax
wmm_enabled=1
driver=nl80211
ssid=YOUR_HOME_WIFI_SSID
macaddr_acl=0
auth_algs=1
ignore_broadcast_ssid=0
wpa=3
wpa_passphrase=y0urverys1cr1tpassw0rd
wpa_key_mgmt=WPA-PSK FT-PSK WPA-PSK-SHA256 SAE FT-SAE
wpa_pairwise=TKIPCCMP
rsn_pairwise=CCMP

You can check that hostapd is correctly configured by launching it manually

Code Block
languagebash
themeMidnight
titlehostapd manual launch
hostapd /etc/hostapd/hostapd.conf 
...

From that point from your mobile phone or laptop:

  • you should be able to see YOUR_HOME_WIFI_SSID appearing in the list of available wireless network
  • you should be able to connect to YOUR_HOME_WIFI_SSID
  • But your mobile device might say: "Internet might not be available or Cannot retrieve IP from YOUR_HOME_WIFI_SSID" 

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Expand
titlebridge wireless traffic from wlan0 --> vetha veth2a --> vethb veth2b (into freeRouter sdn998 )

Now we need to make wireless traffic visible through VRF inet as we need to enable IPv4 (or IPv6) connectivity for mobile device.

So this is done in 2 steps.

Step - 1 - Create a bridge for wireless

Code Block
languagebash
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titleWireless bridge
bridge 1
 mac-learn
 mac-move
 exit


Tip
titleNote

Creating a bridge will also create interface bvi.

Step - 2 - Add veth2b to the wireless bridge

Code Block
languagebash
themeMidnight
titlesdn998 addition into bridge 1
interface sdn998
 description SOHO@WLAN[veth2b-veth2a]
 mtu 1500
 bridge-group 1
 no shutdown
 no log-link-change
 exit


Note
titleWarning

Make sure that bridge 1, sdn998, hairpin11 and hairpin12 are in declared into p4lang server

Code Block
languagebash
themeMidnight
titleLinux Access point software installation
conf t
server p4lang p4 
 export-bridge 1
 export-port sdn998 7 1 0 0 0
 export-port hairpin11 11 0 0 0 0
 export-port hairpin12 12 0 0 0 0



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