Solved Android "Failed to obtain IP" with FreeBSD hosted AP

notarobot

notarobot

Hello, all.
I've installed FreeBSD 11.4-RELEASE on my laptop just yesterday and got my wired network up and running. However, I also need to create an access point so I can connect my phone to the Internet (my modem doesn't have wireless capabilities). I've tried following the instructions in the handbook regarding APs and I can see the ssid on my phone, but I get the error "Failed to obtain IP address" if I try to connect to it.

My laptop has an Atheros wired (alc0) and wireless (ath0) device. Here is the output of ifconfig:

Code: 
alc0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
        options=c3198<VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,TSO4,WOL_MCAST,WOL_MAGIC,VLAN_HWTSO,LINKSTATE>
        ether 04:7d:7b:9c:a6:d5
        hwaddr 04:7d:7b:9c:a6:d5
        inet 192.168.1.2 netmask 0xffffff00 broadcast 192.168.1.255
        nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
        media: Ethernet autoselect (100baseTX <full-duplex>)
        status: active
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
        options=680003<RXCSUM,TXCSUM,LINKSTATE,RXCSUM_IPV6,TXCSUM_IPV6>
        inet6 ::1 prefixlen 128
        inet6 fe80::1%lo0 prefixlen 64 scopeid 0x2
        inet 127.0.0.1 netmask 0xff000000
        nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
        groups: lo
wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
        ether 9c:b7:0d:c8:c8:62
        hwaddr 9c:b7:0d:c8:c8:62
        inet 192.168.0.1 netmask 0xffffff00 broadcast 192.168.0.255
        nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
        media: IEEE 802.11 Wireless Ethernet autoselect mode 11g <hostap>
        status: running
        ssid freebsdap channel 1 (2412 MHz 11g) bssid 9c:b7:0d:c8:c8:62
        regdomain 101 indoor ecm authmode OPEN privacy OFF txpower 20
        scanvalid 60 protmode CTS wme burst dtimperiod 1 -dfs
        groups: wlan

Here's my /etc/rc.conf:

Code: 
ifconfig_alc0="DHCP"
ifconfig_wlan0="DHCP"
wlans_ath0="wlan0"
create_args_wlan0="wlanmode hostap"
ifconfig_wlan0="inet 192.168.0.1 netmask 255.255.255.0 ssid freebsdap mode 11g channel 1"
local_unbound_enable="YES"
sshd_enable="YES"
ntpd_enable="YES"
# Set dumpdev to "AUTO" to enable crash dumps, "NO" to disable
dumpdev="AUTO"
kld_list="/boot/modules/i915kms.ko"

and /boot/loader.conf:

Code: 
if_ath_load="YES"

Output of pciconf -lv ath0 and alc0:

Code: 
ath0@pci0:7:0:0:        class=0x028000 card=0x660311ad chip=0x002e168c rev=0x01 hdr=0x00
    vendor     = 'Qualcomm Atheros'
    device     = 'AR9287 Wireless Network Adapter (PCI-Express)'
    class      = network

alc0@pci0:3:0:0:        class=0x020000 card=0x05741025 chip=0x10831969 rev=0xc0 hdr=0x00
    vendor     = 'Qualcomm Atheros'
    device     = 'AR8151 v2.0 Gigabit Ethernet'
    class      = network
    subclass   = ethernet

Just as a sidenote: I have zero prior experience with FreeBSD and very limited experience with Linux. I hope you can excuse any mistakes I've made in configuring the OS and can be patient with me. Thanks in advance to all
 
You don't have a DHCP server running on your FreeBSD host. So there's nothing serving DHCP on your wireless network. If you want to have everything on the same network you will need to bridge the wireless and wired networks (this is what most commercial APs do).
 
SirDice said:
You don't have a DHCP server running on your FreeBSD host. So there's nothing serving DHCP on your wireless network. If you want to have everything on the same network you will need to bridge the wireless and wired networks (this is what most commercial APs do).
Click to expand...
I created a bridge by following the instructions in the section "31.6. Bridging" of the handbook and it solved the issue. Thank you for your reply
 
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