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I have tried using ap-hotspot from WebUpd8, and it did not work for me in 13.10 or 14.04, so I have been working on getting hostapd manually set up, using isc-dhcp-server since dnsmasq was having conflicts for me. I have been able to connect to the AP, and get an IP, but routing does not seem to want to work. Here is my build log and the guides I have been following:

• https://askubuntu.com/a/180734/279108


• http://thenewbieblog.wordpress.com/2012/05/01/wifi-hotspot-setup-on-ubuntu/


• http://danbishop.org/2011/12/11/using-hostapd-to-add-wireless-access-point-capabilities-to-an-ubuntu-server/

Config files:

/etc/network/interfaces:

auto lo

iface lo inet loopback

auto wlan0

iface wlan0 inet static

hostapd -dd /etc/hostapd/hostapd.conf

address 10.10.0.1

netmask 255.255.255.0

/etc/default/hostapd:

RUN_DAEMON="yes"

DAEMON_CONF="/etc/hostapd/hostapd.conf"

DAEMON_OPTS="-dd"

/etc/hostapd/hostapd.conf:

# WiFi Hotspot

interface=wlan0

driver=nl80211

#Access Point

ssid=workshop

hw_mode=g

# WiFi Channel:

channel=1

macaddr_acl=0

auth_algs=1

ignore_broadcast_ssid=0

wpa=2

wpa_passphrase=mypass

wpa_key_mgmt=WPA-PSK

wpa_pairwise=TKIP

rsn_pairwise=CCMP

/etc/dhcp/dhcpd.conf:

ddns-update-style none;

#default-lease-time 600;

#max-lease-time 7200;

log-facility local7;

subnet 10.10.0.0 netmask 255.255.255.0 {

    range 10.10.0.2 10.10.0.32;

    option domain-name-servers 208.67.222.222, 208.67.220.220;

    option routers 10.10.0.1;

}

/etc/rc.local:

iptables -t nat -A POSTROUTING -s 10.10.0.0/32 -o eth1 -j MASQUERADE

exit 0

The following commands were run:

sudo ifconfig wlan0 10.10.0.1

sudo sysctl net.ipv4.ip_forward=1

sudo ip link set dev wlan0 up

sudo service hostapd start

I have installed bridge-utils, but I have not added br0 yet because I am not sure how to change the other parts of my config to reflect it...

Edit:
After double checking my configs through another (older) guide, tried again and decided to add what shows up in the logs when something connects. The device connecting is my android phone, which connects fine through normal routers.

(I understand most of what is going on in the logs, and startup looks fine. Then scrolling randomness...)

Add randomness: count=52 entropy=51

mgmt::auth

authentication: STA=a0:f4:50:18:a2:c3 auth_alg=0 auth_transaction=1 status_code=0 wep=0

  New STA

wlan0: STA a0:f4:50:18:a2:c3 IEEE 802.11: authentication OK (open system)

wlan0: STA a0:f4:50:18:a2:c3 MLME: MLME-AUTHENTICATE.indication(a0:f4:50:18:a2:c3, OPEN_SYSTEM)

wlan0: STA a0:f4:50:18:a2:c3 MLME: MLME-DELETEKEYS.request(a0:f4:50:18:a2:c3)

authentication reply: STA=a0:f4:50:18:a2:c3 auth_alg=0 auth_transaction=2 resp=0 (IE len=0)

Add randomness: count=53 entropy=52

mgmt::auth cb

wlan0: STA a0:f4:50:18:a2:c3 IEEE 802.11: authenticated

mgmt::assoc_req

association request: STA=a0:f4:50:18:a2:c3 capab_info=0x431 listen_interval=20

  new AID 1

wlan0: STA a0:f4:50:18:a2:c3 IEEE 802.11: association OK (aid 1)

Add randomness: count=54 entropy=53

mgmt::assoc_resp cb

wlan0: STA a0:f4:50:18:a2:c3 IEEE 802.11: associated (aid 1)

wlan0: STA a0:f4:50:18:a2:c3 MLME: MLME-ASSOCIATE.indication(a0:f4:50:18:a2:c3)

wlan0: STA a0:f4:50:18:a2:c3 MLME: MLME-DELETEKEYS.request(a0:f4:50:18:a2:c3)

wpa_driver_nl80211_set_key: ifindex=3 alg=0 addr=0x9f8ac90 key_idx=0 set_tx=1 seq_len=0 key_len=0

   addr=a0:f4:50:18:a2:c3

wlan0: STA a0:f4:50:18:a2:c3 WPA: event 1 notification

wpa_driver_nl80211_set_key: ifindex=3 alg=0 addr=0x9f8ac90 key_idx=0 set_tx=1 seq_len=0 key_len=0

   addr=a0:f4:50:18:a2:c3

IEEE 802.1X: Ignore STA - 802.1X not enabled or forced for WPS

wlan0: STA a0:f4:50:18:a2:c3 WPA: start authentication

WPA: a0:f4:50:18:a2:c3 WPA_PTK entering state INITIALIZE

wpa_driver_nl80211_set_key: ifindex=3 alg=0 addr=0x9f8ac90 key_idx=0 set_tx=1 seq_len=0 key_len=0

   addr=a0:f4:50:18:a2:c3

wlan0: STA a0:f4:50:18:a2:c3 IEEE 802.1X: unauthorizing port

WPA: a0:f4:50:18:a2:c3 WPA_PTK_GROUP entering state IDLE

WPA: a0:f4:50:18:a2:c3 WPA_PTK entering state AUTHENTICATION

WPA: a0:f4:50:18:a2:c3 WPA_PTK entering state AUTHENTICATION2

WPA: Re-initialize GMK/Counter on first station

Get randomness: len=32 entropy=54

GMK - hexdump(len=32): [REMOVED]

Get randomness: len=32 entropy=22

Key Counter - hexdump(len=32): [REMOVED]

Get randomness: len=16 entropy=0

GTK - hexdump(len=16): [REMOVED]

wpa_driver_nl80211_set_key: ifindex=3 alg=3 addr=0x80dd6be key_idx=1 set_tx=1 seq_len=0 key_len=16

   broadcast key

WPA: Assign ANonce - hexdump(len=32): 12 53 6f 26 8a a3 87 09 b4 31 e2 81 ef c3 ea 3e 6c 3d 0c a5 fb 85 07 f2 0a 2a 4a 5e a2 00 59 e9

WPA: a0:f4:50:18:a2:c3 WPA_PTK entering state INITPSK

WPA: a0:f4:50:18:a2:c3 WPA_PTK entering state PTKSTART

wlan0: STA a0:f4:50:18:a2:c3 WPA: sending 1/4 msg of 4-Way Handshake

WPA: Send EAPOL(version=2 secure=0 mic=0 ack=1 install=0 pairwise=8 kde_len=0 keyidx=0 encr=0)

WPA: Use EAPOL-Key timeout of 100 ms (retry counter 1)

nl80211: Event message available

nl80211: New station a0:f4:50:18:a2:c3

IEEE 802.1X: a0:f4:50:18:a2:c3 TX status - version=2 type=3 length=95 - ack=1

WPA: EAPOL-Key TX status for STA a0:f4:50:18:a2:c3 ack=1

WPA: Increase initial EAPOL-Key 1/4 timeout by 1000 ms because of acknowledged frame

IEEE 802.1X: 121 bytes from a0:f4:50:18:a2:c3

   IEEE 802.1X: version=1 type=3 length=117

WPA: Received EAPOL-Key from a0:f4:50:18:a2:c3 key_info=0x10a type=2 key_data_length=22

WPA: Received Key Nonce - hexdump(len=32): 7c 4d 99 9f 10 56 93 84 a9 8a f8 15 d8 8e 1e 6d 2f 39 95 8f bc 99 9a 4c 06 3d 37 65 e6 db 49 fa

WPA: Received Replay Counter - hexdump(len=8): 00 00 00 00 00 00 00 01

Add randomness: count=55 entropy=0

wlan0: STA a0:f4:50:18:a2:c3 WPA: received EAPOL-Key frame (2/4 Pairwise)

WPA: a0:f4:50:18:a2:c3 WPA_PTK entering state PTKCALCNEGOTIATING

WPA: PTK derivation - A1=90:4c:e5:55:94:4d A2=a0:f4:50:18:a2:c3

WPA: Nonce1 - hexdump(len=32): 12 53 6f 26 8a a3 87 09 b4 31 e2 81 ef c3 ea 3e 6c 3d 0c a5 fb 85 07 f2 0a 2a 4a 5e a2 00 59 e9

WPA: Nonce2 - hexdump(len=32): 7c 4d 99 9f 10 56 93 84 a9 8a f8 15 d8 8e 1e 6d 2f 39 95 8f bc 99 9a 4c 06 3d 37 65 e6 db 49 fa

WPA: PMK - hexdump(len=32): [REMOVED]

WPA: PTK - hexdump(len=48): [REMOVED]

WPA: a0:f4:50:18:a2:c3 WPA_PTK entering state PTKCALCNEGOTIATING2

WPA: a0:f4:50:18:a2:c3 WPA_PTK entering state PTKINITNEGOTIATING

wlan0: STA a0:f4:50:18:a2:c3 WPA: sending 3/4 msg of 4-Way Handshake

WPA: Send EAPOL(version=2 secure=1 mic=1 ack=1 install=1 pairwise=8 kde_len=46 keyidx=1 encr=1)

Plaintext EAPOL-Key Key Data - hexdump(len=56): [REMOVED]

WPA: Use EAPOL-Key timeout of 100 ms (retry counter 1)

IEEE 802.1X: a0:f4:50:18:a2:c3 TX status - version=2 type=3 length=151 - ack=1

WPA: EAPOL-Key TX status for STA a0:f4:50:18:a2:c3 ack=1

IEEE 802.1X: 99 bytes from a0:f4:50:18:a2:c3

   IEEE 802.1X: version=1 type=3 length=95

WPA: Received EAPOL-Key from a0:f4:50:18:a2:c3 key_info=0x30a type=2 key_data_length=0

WPA: Received Key Nonce - hexdump(len=32): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

WPA: Received Replay Counter - hexdump(len=8): 00 00 00 00 00 00 00 02

wlan0: STA a0:f4:50:18:a2:c3 WPA: received EAPOL-Key frame (4/4 Pairwise)

WPA: a0:f4:50:18:a2:c3 WPA_PTK entering state PTKINITDONE

wpa_driver_nl80211_set_key: ifindex=3 alg=3 addr=0x9f8ac90 key_idx=0 set_tx=1 seq_len=0 key_len=16

   addr=a0:f4:50:18:a2:c3

wlan0: AP-STA-CONNECTED a0:f4:50:18:a2:c3

wlan0: STA a0:f4:50:18:a2:c3 IEEE 802.1X: authorizing port

wlan0: STA a0:f4:50:18:a2:c3 RADIUS: starting accounting session 536C1843-00000000

wlan0: STA a0:f4:50:18:a2:c3 WPA: pairwise key handshake completed (RSN)

Add randomness: count=56 entropy=1

(more randomness, until I ctrl+c)

Try the following

sudo apt-get install hostapd dnsmasq dhcp3-server isc-dhcp-server haveged

Setting up hostapd

hostapd is for wireless router functionality:

leafpad /etc/hostapd.conf

General Hotspot Configurations:

Define interface

interface=wlan#

bridge=br0

Select driver:

driver=nl80211

Set access point hardware mode to 802.11a/b/g/n (hw supports?):

hw_mode=g

logger_stdout=-1

logger_stdout_level=2

require_ht=0

ht_capab= [HT40+] [HT40-] [SHORT-GI-40] [RX-STBC1]

ieee80211d=1

ieee80211n=1

macaddr_acl=0

wmm_enabled=1

Configure wireless characteristics:

beacon_int=50

country_code=US

disassoc_low_ack=1

Set Wi-Fi channel:

channel=6

Set access point name:

ssid=nametobroacdcast

ignore_broadcast_ssid=0

Set encryption standard (1 for WPA, 2 for WPA2, 3 for WPA + WPA2):

auth_algs=1

wpa=3

wpa_passphrase=yourpassword

wpa_key_mgmt=WPA-PSK

wpa_pairwise=TKIP CCMP

rsn_pairwise=CCMP

Other options for wpa_key_mgmt=WPA-EAP WPA-PSK-SHA256 WPA-EAP-SHA256

Create & save ./######.sh script

#!/bin/bash

# Configure IP address for WLAN

sudo ifconfig wlan0 up 192.168.3.1 netmask 255.255.255.0

sleep 2



# Start DHCP/DNS server (Can replace `dnsmasq` with `dhcpd` or `isc-hdcp-server`):

sudo service dnsmasq restart



# Replace "dnsmasq restart" line above with this area between ## ## if that does not work

if [ “$(ps –e | grep dhcpd)” == “” ]; then

dhcpd $1 &

fi



# Enable routing

sudo sysctl net.ipv4.ip_forward=1



# Enable Network Address Translation (NAT)

sudo iptables --flush

sudo iptables –-table nat --flush

sudo iptables --delete-chain

sudo iptables --table nat --delete-chain

sudo iptables --table nat --flush

sudo iptables -t nat -A POSTROUTING --out –interface $1 -j MASQUERADE



# “$1” = computer acting as AP output interface (to internet)

sudo iptables –A FORWARD –in-interface $2 –j ACCEPT



# “$2” = client input interface (to client)

echo 1 > /proc/sys/net/ipv4/ipforward



# Run access point daemon

sudo hostapd /etc/hostapd.conf



# Stopping DHCP/DNS server



# Disable NAT

sudo iptables -D POSTROUTING -t nat -o ppp0 -j MASQUERADE



# Disable routing

sudo sysctl net.ipv4.ip_forward=0



# Disable DHCP/DNS server

sudo service dnsmasq stop

# Can replace with “dhcpd” or “isc-hdcp-server”



# Start HOSTAPD

sudo service hostapd start

Start setup DNS/DHCP

dnsmasq dhcp3-server isc-dhcp-server is for DNS/DHCP functionality (choose one):

Example:

leafpad /etc/dhcp/dhcpd.conf

General DHCP Configurations:

ddns-update-style none;

ignore clients-updates;

authoritative;

option local-wpad code 252 = test;

log-facility local7;

default-lease-time 3600;

max-lease-time 7200;

subnet

192.168.3.0 netmask 255.255.255.0 {

    # Broadcast address

    option broadcast-address 192.168.3.2;

    # Netmask

    option subnet-mask 255.255.255.0;

    # Default gateway

    option routers 192.168.3.1;



    # Domain Name Servers for directing client traffic 

    option domain-name-servers 8.8.8.8, 8.8.4.4;

    option time-offset 0;



    # Set IP address range available to clients

    range 192.168.3.2, 192.168.3.100;

}

Allow ./#####.sh script created to run

Make hostapdfilecreated.sh executable:

sudo chmod +x nameoffilecreated.sh

You have to be inside the directory where ######.sh file resides, cd into it then run command.

Execute script to start computer-based access point broadcasting:

sudo ./nameoffilecreated.sh