Share internet connection with Ad-hoc mode.
- From: "Semih Gokalp" <semihgokalp@xxxxxxxxx>
- Date: Thu, 5 Jun 2008 19:53:30 +0300
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:off Fragment thr:off
Encryption key:PASSWORD is HERE(like
xxxx-xxxx-xxxx-xxxx-xxxx-xxxx-xx) Security mode:open
Power Management:off
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:off
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
- Follow-Ups:
- Re: Share internet connection with Ad-hoc mode.
- From: Giorgos D. Pallas
- Re: Share internet connection with Ad-hoc mode.
- Prev by Date: Re: Running testing? -- read this.
- Next by Date: Re: IP forwarding drops out.
- Previous by thread: Automatic debiian installation
- Next by thread: Re: Share internet connection with Ad-hoc mode.
- Index(es):
Relevant Pages
|
