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Scurta introducere: Plecand de la o ideea lui Nytro de a posta un tutorial despre access point pe backtrack, am zis ca ar fi ok sa fac share la un tutorial facut de mine in urma cu 9-10 luni. Cum imi plac lucrurile mai complicate si dorind ceva foarte stabil, AP-ul l-am facut pe FreeBSD. -- Satul de micile cutiute magice folosite pentru Wireless / Routing (Netgear, D-Link), am decis sa-mi fac un AP pe unul din “serverele” cu FreeBSD ce le folosesc acasa pentru lucru. Dezavantajele cutiutelor: Se blocau frecvent, erau instabile. Note: - Placa wireless folosita: Linksys WMP54G. (O vede ca Ralink Technology, Corp) - In tutorial nu am inclus si configurarea protejarii wireless-ului, o sa fac un tutorial separat pentru asta. (Update: S-a facut.) - Test-ul wireless-ului l-am facut dupa un netbook; Screenshot-ul se poate vedea aici. - Pe netbook, am configurat manual adresa IP; Daca doriti sa aloce automat, puteti instala DHCPD. - NAT-ul in firewall este facut catre 10.0.0.12 (Adresa IP dupa placa de retea externala – Nu am specificat nat catre interfata pentru ca este si IPv6) - FreeBSD-ul folosit este 8.2 Release. tex ~ # pciconf -lv .................................... ral0@pci0:1:0:0: card=0x00551737 chip=0x03011814 rev=0x00 hdr=0x00 vendor = 'Ralink Technology, Corp.' device = 'Edimax 54 MBit WLan 802.11g rt 2500 (b8341462)' class = network tex ~ # ifconfig ral0 ral0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> metric 0 mtu 2290 ether 00:16:b6:5d:73:05 media: IEEE 802.11 Wireless Ethernet autoselect (autoselect) status: no carrier tex ~ # dmesg |grep ral ral0: <Ralink Technology RT2561S> mem 0xfbef8000-0xfbefffff irq 17 at device 0.0 on pci1 ral0: MAC/BBP RT2661B, RF RT2527 ral0: [ITHREAD] ppc0: <Parallel port> port 0x378-0x37f irq 7 on acpi0 ppbus0: <Parallel port bus> on ppc0 ppi0: <Parallel I/O> on ppbus0 tex ~ # ifconfig wlan1 create wlandev ral0 wlanmode hostap tex ~ # ifconfig wlan1 up scan SSID/MESH ID BSSID CHAN RATE S:N INT CAPS FRITZ!Box o... 00:24:fe:ac:7b:35 1 54M -93:-95 100 EPS RSN WPA WME HTCAP ATH WPS LINUX SECUR... 00:1b:2f:f6:d5:12 11 54M -83:-95 100 EPS RSN WPA WME tex ~ # tex ~ # ifconfig wlan1 192.168.0.1 netmask 255.255.255.0 ssid RTFM channel 11 tex ~ # ifconfig wlan1 wlan1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 ether 00:16:b6:5d:73:05 inet6 fe80::216:b6ff:fe5d:7305%wlan1 prefixlen 64 scopeid 0x7 inet 192.168.0.1 netmask 0xffffff00 broadcast 192.168.0.255 nd6 options=3<PERFORMNUD,ACCEPT_RTADV> media: IEEE 802.11 Wireless Ethernet autoselect mode 11g <hostap> status: running ssid RTFM channel 11 (2437 MHz 11g) bssid 00:16:b6:5d:73:05 country US authmode OPEN privacy OFF txpower 0 scanvalid 60 protmode CTS dtimperiod 1 -dfs tex ~ # pico /etc/rc.conf ............ wlans_ral0="wlan1" create_args_wlan1="wlanmode hostap mode 11g" ifconfig_wlan1="inet 192.168.0.1 netmask 0xffffff00 ssid RTFM channel 11" ............ tex ~ # pico /etc/pf.conf ............ nat from 192.168.0.0/24 to any -> 10.0.0.12 ............ tex ~ # /etc/rc.d/pf reload Reloading pf rules. tex ~ # sysctl net.inet.ip.forwarding=1 net.inet.ip.forwarding: 0 -> 1 tex ~ # echo 'net.inet.ip.forwarding=1' >> /etc/sysctl.conf tex ~ # ifconfig -m wlan1 wlan1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 ether 00:16:b6:5d:73:05 inet 192.168.0.1 netmask 0xffffff00 broadcast 192.168.0.255 inet6 fe80::216:b6ff:fe5d:7305%wlan1 prefixlen 64 scopeid 0x7 nd6 options=3<PERFORMNUD,ACCEPT_RTADV> media: IEEE 802.11 Wireless Ethernet autoselect mode 11g <hostap> status: running supported media: media OFDM/54Mbps mode autoselect mediaopt hostap media OFDM/48Mbps mode autoselect mediaopt hostap media OFDM/36Mbps mode autoselect mediaopt hostap media OFDM/24Mbps mode autoselect mediaopt hostap media OFDM/18Mbps mode autoselect mediaopt hostap media OFDM/12Mbps mode autoselect mediaopt hostap media OFDM/9Mbps mode autoselect mediaopt hostap media OFDM/6Mbps mode autoselect mediaopt hostap media DS/11Mbps mode autoselect mediaopt hostap media DS/5.5Mbps mode autoselect mediaopt hostap media DS/2Mbps mode autoselect mediaopt hostap media DS/1Mbps mode autoselect mediaopt hostap media OFDM/54Mbps mode 11g mediaopt hostap media OFDM/48Mbps mode 11g mediaopt hostap media OFDM/36Mbps mode 11g mediaopt hostap media OFDM/24Mbps mode 11g mediaopt hostap media OFDM/18Mbps mode 11g mediaopt hostap media OFDM/12Mbps mode 11g mediaopt hostap media OFDM/9Mbps mode 11g mediaopt hostap media OFDM/6Mbps mode 11g mediaopt hostap media DS/11Mbps mode 11g mediaopt hostap media DS/5.5Mbps mode 11g mediaopt hostap media DS/2Mbps mode 11g mediaopt hostap media DS/1Mbps mode 11g mediaopt hostap media autoselect mode 11g mediaopt hostap media DS/11Mbps mode 11b mediaopt hostap media DS/5.5Mbps mode 11b mediaopt hostap media DS/2Mbps mode 11b mediaopt hostap media DS/1Mbps mode 11b mediaopt hostap media autoselect mode 11b mediaopt hostap media autoselect mode autoselect mediaopt hostap ssid RTFM channel 11 (2462 MHz 11g) bssid 00:16:b6:5d:73:05 country US authmode OPEN privacy OFF txpower 0 scanvalid 60 protmode CTS dtimperiod 1 -dfs tex ~ # Alte note: - Daca doriti sa va faceti o jucarie de genul si nu pricepeti ceva, va pot ajuta. - O sa includ in acest thread inca un howto, pentru protejarea AP-ului.