Hi all.
I have two notebook and i want to share internet connection from old notebook(Debian 4.0 etch) to new notebook(ubuntu 8.04).Old notebook will work ad-hoc mode and other notebooks will connect to internet from debian notebook.
I configured debian notebook like below:
LAN (eth0) : IP: 192.168.1.3 GW:192.168.1.254 DNS:192.168.1.254 and share internet connection with iptables.
Wireless(eth1) : IP:192.168.0.1 GW: dont use , DNS: dont use , Authentication: WEP-128bit HEX , Mode: Ad-hoc , ESSID: debian
Enable ipv4_forward and write iptables configuration like below:
# iptables -A FORWARD -i eth1 -o eth0 -j ACCEPT
# iptables -A FORWARD -i eth0 -o eth1 -m state --state ESTABLISHED,RELATED -j ACCEPT
# iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
and wireless information like below:
--------------------------------------------
#debian:~# iwconfig
lo******* no wireless extensions.
eth0***** no wireless extensions.
eth1** IEEE 802.11b* ESSID:"debian"* Nickname:"ipw2100"
******** Mode:Ad-Hoc* Frequency:2.412 GHz* Cell: 02:0C:F1:42:EF:EF**
* ****** Bit Rate=0 kb/s** Tx-Power:16 dBm***
******** Retry min limit:7** RTS thr

ff** Fragment thr

ff
******** Encryption key:PASSWORD is HERE(like xxxx-xxxx-xxxx-xxxx-xxxx-xxxx-xx) Security mode

pen
* ****** Power Management

ff
******** Link Quality=60/100* Signal level=-83 dBm*
******** Rx invalid nwid:0* Rx invalid crypt:0* Rx invalid frag:0
* ****** Tx excessive retries:0* Invalid misc:0** Missed beacon:0
------------------------------------------------------------------
and ps auxc command like below:
---------------------------------------
root***** 3635* 0.0* 0.2** 2656* 1124 ?******* Ss** 18:54** 0:00 dhcpd3
-------------------------------------------
dhcpd3 is running.
and it works ! but not on ubuntu 8.04 !
it only works vi_sta machine.Vi_sta can connect to internet with wireless and take an ip from debian notebook dhcp server.
Ubuntu8.04 can not connect to internet and can not take an ip from debian dhcp server.
Ubuntu 8.04's route command like below:
Destination**** Gateway******** Genmask******** Flags Metric Ref*** Use Iface
localnet******* *************** 255.255.255.0** U**** 0***** 0******* 0 wlan0
link-local***** *************** 255.255.0.0**** U**** 1000** 0******* 0 wlan0
default******** 192.168.0.1 * 0.0.0.0******** UG*** 100*** 0******* 0 wlan0
ubuntu can find debian wireless , I enter WEP-128 HEX password and it connect to debian essid but DO NOT take an ip from debian dhcp server.
iwconfig command on ubuntu like below:
-------------------------------------
lo******* no wireless extensions.
eth0***** no wireless extensions.
wlan0**** IEEE 802.11g* ESSID:"debian"*
********* Mode:Ad-Hoc* Frequency:2.412 GHz* Cell: 02:0C:F1:42:EF:EF**
********* Bit Rate=54 Mb/s**
********* Power Management

ff
********* Link Quality:62/100* Signal level:-56 dBm* Noise level:-96 dBm
********* Rx invalid nwid:0* Rx invalid crypt:0* Rx invalid frag:0
********* Tx excessive retries:4* Invalid misc:1544** Missed beacon:0
---------------------------------------------------------------------------
ifconfig command on ubuntu like below:
--------------------------------------------------------------
lo******* Link encap:Local Loopback*
********* inet addr:127.0.0.1* Mask:255.0.0.0
********* inet6 addr: ::1/128 Scope:Host
********* UP LOOPBACK RUNNING* MTU:16436* Metric:1
********* RX packets:103 errors:0 dropped:0 overruns:0 frame:0
********* TX packets:103 errors:0 dropped:0 overruns:0 carrier:0
********* collisions:0 txqueuelen:0
********* RX bytes:8796 (8.5 KB)* TX bytes:8796 (8.5 KB)
wlan0**** Link encap:Ethernet* HWaddr 00:15:af:4f:46:9d*
********* inet6 addr: fe80::215:afff:fe4f:469d/64 Scope:Link
********* UP BROADCAST RUNNING MULTICAST* MTU:1500* Metric:1
********* RX packets:9 errors:0 dropped:0 overruns:0 frame:0
********* TX packets:81 errors:0 dropped:0 overruns:0 carrier:0
********* collisions:0 txqueuelen:1000
********* RX bytes:378 (378.0 B)* TX bytes:14357 (14.0 KB)
********* Interrupt:19 Memory:f0300000-f0310000
wlan0:avahi Link encap:Ethernet* HWaddr 00:15:af:4f:46:9d*
********* inet addr:169.254.6.138* Bcast:169.254.255.255* Mask:255.255.0.0
********* UP BROADCAST RUNNING MULTICAST* MTU:1500* Metric:1
********* Interrupt:19 Memory:f0300000-f0310000
-------------------------------------------------------------------------------------------
And i tried dhclient command on ubuntu like below:
# dhclient wlan0
Listening on LPF/wlan0/00:15:af:4f:46:9d
Sending on** LPF/wlan0/00:15:af:4f:46:9d
Sending on** Socket/fallback
DHCPREQUEST of 192.168.0.187 on wlan0 to 255.255.255.255 port 67
DHCPREQUEST of 192.168.0.187 on wlan0 to 255.255.255.255 port 67
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 8
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 10
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 11
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 16
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 16
No DHCPOFFERS received.
Trying recorded lease 192.168.0.187
PING 192.168.0.1 (192.168.0.1) 56(84) bytes of data.
--- 192.168.0.1 ping statistics ---
1 packets transmitted, 0 received, +1 errors, 100% packet loss, time 0ms
No working leases in persistent database - sleeping.
--------------------------------------------------------------------------------
it took ip from apipa like 169.254.....
and i tried manual ip configuration but not worked.I can not ping to 192.168.0.1
Why can not I connnection to internet with ubuntu8.04 machine ?
If you help me,i will be happy. Thanks all.
--
Iyi calismalar.Basarilar...
Semih Gokalp
Turkiye