when connecting to a wep enabled access point dhcpcd fails to attain network configuration information from the access point. i have the latest version of the following packages ieee80211-1.1.9 ipw2200-1.0.10 dhcpcd-2.0.0 wireless-tools-28_pre13 baselayout-1.12.0_pre14-r2 (not latest version) udev-081 and im running kernel-2.6.15-gentoo i cannot even connect by manually specifying network settings using ifconfig, route and specifying a dns server in /etc/resolv.conf the problem is that i can connect to a wep enabled ap, but cannot do anything beyond that point as far as attaining network connectivity. i think this may be an ipw2200 issue, but want to check with the gentoo team first as ive installed all packages using emerge. i should also mention that i have no problem gaining network info from a non-wep ap. i can manually specify connection parameters or use dhcpcd; the problem i have noticed is only during usage of a wep enabled ap. the issue may be due to lack of cryptographic modules here is the output from lsmod ipw2200 154436 0 ieee80211 39400 1 ipw2200 ieee80211_crypt 4864 1 ieee80211 i have the following compiled as modules AES cipher algorithms (i586) SHA1 digest algorithm Michael MIC keyed digest algorithm but dont have them loaded when running ipw2200 as you can see. do i need to have these loaded into the kernel when trying to work with a wep ap? lastly i want to mention the thread i have running on the gentoo forums, this has lots of information about the problem and what i have done to try to resolve it. http://forums.gentoo.org/viewtopic-t-421628-highlight-.html thanks, -nathan
Please provide the details which made you conclude that DHCP fails with WEP. You didn't provide a single command output in this bug report, not even the required `emerge --info` output.
$emerge info Portage 2.1_pre3-r1 (default-linux/x86/2005.1, gcc-3.4.4, glibc-2.3.5-r1, 2.6.15-gentoo-r1 i686) ================================================================= System uname: 2.6.15-gentoo-r1 i686 Intel(R) Pentium(R) M processor 1.60GHz Gentoo Base System version 1.6.14 distcc 2.18.3 i686-pc-linux-gnu (protocols 1 and 2) (default port 3632) [enabled] dev-lang/python: 2.3.5, 2.4.2 sys-apps/sandbox: 1.2.12 sys-devel/autoconf: 2.13, 2.59-r6 sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6 sys-devel/binutils: 2.15.92.0.2-r10 sys-devel/libtool: 1.5.18-r1 virtual/os-headers: 2.6.11-r2 ACCEPT_KEYWORDS="x86 ~x86" AUTOCLEAN="yes" CBUILD="i686-pc-linux-gnu" CFLAGS="-O2 -march=pentium-m -pipe" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3.4/env /usr/kde/3.4/share/config /usr/kde/3.4/shutdown /usr/kde/3.5/env /usr/kde/3.5/share/config /usr/kde/3.5/shutdown /usr/kde/3/share/config /usr/lib/X11/xkb /usr/lib/mozilla/defaults/pref /usr/share/config /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/splash /etc/terminfo /etc/env.d" CXXFLAGS="-O2 -march=pentium-m -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig distcc distlocks sandbox sfperms strict" GENTOO_MIRRORS="http://distfiles.gentoo.org/ http://gentoo.osuosl.org/ ftp://distro.ibiblio.org/pub/linux/distributions/gentoo/ http://distro.ibiblio.org/pub/linux/distributions/gentoo/ ftp://ftp.gtlib.cc.gatech.edu/pub/gentoo ftp://mirror.iawnet.sandia.gov/pub/gentoo/ ftp://ftp.ussg.iu.edu/pub/linux/gentoo http://gentoo.seren.com/gentoo http://gentoo.chem.wisc.edu/gentoo/ ftp://gentoo.chem.wisc.edu/gentoo/ http://cudlug.cudenver.edu/gentoo/ ftp://cudlug.cudenver.edu/pub/mirrors/distributions/gentoo/ http://gentoo.ccccom.com ftp://gentoo.ccccom.com http://gentoo.mirrors.tds.net/gentoo ftp://gentoo.mirrors.tds.net/gentoo http://gentoo.netnitco.net ftp://gentoo.netnitco.net/pub/mirrors/gentoo/source/ http://mirror.espri.arizona.edu/gentoo/ http://mirrors.acm.cs.rpi.edu/gentoo/ ftp://ftp.ndlug.nd.edu/pub/gentoo/ http://open-systems.ufl.edu/mirrors/gentoo http://gentoo.llarian.net/ ftp://gentoo.llarian.net/pub/gentoo http://gentoo.binarycompass.org http://mirror.datapipe.net/gentoo http://mirror.datapipe.net/gentoo http://gentoo.cs.lewisu.edu/gentoo/ ftp://linux.cs.lewisu.edu/gentoo/ http://prometheus.cs.wmich.edu/gentoo http://modzer0.cs.uaf.edu/public/gentoo/ http://mirror.usu.edu/mirrors/gentoo/ ftp://mirror.usu.edu/mirrors/gentoo/ ftp://lug.mtu.edu/gentoo http://mirror.phy.olemiss.edu/mirror/gentoo http://mirror.mcs.anl.gov/pub/gentoo/ ftp://mirror.mcs.anl.gov/pub/gentoo/ http://gentoo.mirrors.easynews.com/linux/gentoo/ http://gentoo.cites.uiuc.edu/pub/gentoo/ ftp://gentoo.cites.uiuc.edu/pub/gentoo/" MAKEOPTS="-j3" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="x86 3dnow X alsa apm arts audiofile avi berkdb bitmap-fonts bzip2 cdr cdrw crypt cups curl directfb divx4linux doc dvd eds emboss encode exif expat fam fbdev ffmpeg foomaticdb fortran gdbm gif glut gmp gnome gpm gstreamer gtk gtk2 gtkhtml idn imagemagick imlib ipv6 java jpeg junit kde lcms ldap libg++ libwww live mad mhash mikmod mmx mmx2 mng motif mozilla mp3 mpeg nas ncurses network nls nsplugin ogg oggvorbis opengl oss pam pcre pdflib perl png python qt quicktime readline real rtc samba sdl spell sse ssl tcpd tiff truetype truetype-fonts type1-fonts udev usb vorbis win32codecs xine xinerama xml xml2 xmms xv xvid zlib elibc_glibc kernel_linux userland_GNU" Unset: ASFLAGS, CTARGET, LANG, LC_ALL, LDFLAGS, LINGUAS i connect to the wep enabled ap with the following command sequence $modprobe ipw2200 $/etc/inid.d/net.eth1 start * Starting eth1 * Configuring wireless network for eth1 * Trying to force preferred in case they are hidden * eth1 connected to "RLC-WLAN" at 00:40:96:5B:3B:52 * in managed mode (WEP enabled - open) * Bringing up eth1 * dhcp * Running dhcpcd ... after a while dhcpcd times out and the following is placed in /var/log/messages Jan 19 16:20:18 rarea51 dhcpcd[17566]: timed out waiting for a valid DHCP server response the reason im sure this is not an issue with the ap is that i configured my home router to match the ap i was initially having trouble with.
This is not a baselayout issue - I have all 4 IPv4 DHCP clients in portage running over WEP on madwifi/prism54/rt2500/rt2x00 without issue. Also, you if cannot connect via manual setup with ifconfig as you have already demonstrated then you have proven the error is with the link and not dhcp.
Please post the output of `iwconfig eth1` right after DHCP timed out. Also, please try setting an IP manually instead, and see if you can ping the AP.
here is the output directly after dhcp times out of both iwconfig and ifconfig. localhost nathan # /etc/init.d/net.eth1 restart * Starting eth1 * Configuring wireless network for eth1 * eth1 connected to "RLC-WLAN" at 00:40:96:5B:3B:52 * in managed mode (WEP enabled - open) * Bringing up eth1 * dhcp * Running dhcpcd ... [ !! ] localhost nathan # iwconfig eth1 eth1 IEEE 802.11b ESSID:"RLC-WLAN" Nickname:"RLC-WLAN" Mode:Managed Frequency:2.412 GHz Access Point: 00:40:96:5B:3B:52 Bit Rate=11 Mb/s Tx-Power=20 dBm Retry limit:7 RTS thr:off Fragment thr:off Encryption key:3535-3434-3333-3232-3131-0000-00 Security mode:open Power Management:off Link Quality=64/100 Signal level=-63 dBm Noise level=-85 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:78 Missed beacon:0 localhost nathan # ifconfig eth1 eth1 Link encap:Ethernet HWaddr 00:12:F0:C4:65:9B BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:441 errors:0 dropped:203 overruns:0 frame:0 TX packets:17 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:21207 (20.7 Kb) TX bytes:4672 (4.5 Kb) Interrupt:11 Base address:0xc000 Memory:c0204000-c0204fff ------------------ here is an attempt to manually specify ip and ping ap; i think you are right the problem is not dhcp. i think the problem is ipw2200. localhost nathan # ifconfig eth1 10.0.16.250 netmask 255.255.248.0 localhost nathan # route -v add default gw 10.0.16.1 localhost nathan # ping 10.0.16.1 PING 10.0.16.1 (10.0.16.1) 56(84) bytes of data. From 10.0.16.250 icmp_seq=1 Destination Host Unreachable From 10.0.16.250 icmp_seq=2 Destination Host Unreachable From 10.0.16.250 icmp_seq=3 Destination Host Unreachable From 10.0.16.250 icmp_seq=5 Destination Host Unreachable From 10.0.16.250 icmp_seq=6 Destination Host Unreachable From 10.0.16.250 icmp_seq=7 Destination Host Unreachable --- 10.0.16.1 ping statistics --- 7 packets transmitted, 0 received, +6 errors, 100% packet loss, time 6023ms , pipe 3
Does it work without WEP?
yes, no problem. i have connected to numerous non-wep aps without a problem. both manual configurations and dhcp work when connecting to non-wep aps, this is why im now thinking the issue is with ipw2200.
Since I can not reproduce this bug here, could you please double-check that your kernel contains the following: CONFIG_CRYPTO CONFIG_CRYPTO_ARC4 CONFIG_CRC32 If they are there, could you please try with them compiled statically into the kernel as opposed to modular? If it still doesn't work, please see if you can reproduce this using earlier version of net-wireless/ieee80211 and net-wireless/ipw2200.
Oh, and the output of `iwlist eth1 scan` would be nice too (make sure it includes an entry for your AP).
My question is are you using a 40/64-bit WEP key or a 128 bit WEP key? brix, I've seen this before when the wrong WEP key length was used in the router vs in the card. You can see that he's using a 128-bit WEP key in his configs.. but his router might be using 40/64-bit.
$iwlist eth1 scanning eth1 Scan completed : Cell 01 - Address: 00:40:96:5B:3B:52 ESSID:"<hidden>" Protocol:IEEE 802.11b Mode:Master Channel:1 Encryption key:on Bit Rates:11 Mb/s Extra: Rates (Mb/s): 1 2 5.5 11 Quality:64 Signal level:0 Noise level:0 Extra: Last beacon: 124ms ago i compilled CONFIG_CRYPTO CONFIG_CRYPTO_ARC4 CONFIG_CRC32 directly into the kernel and rolled back to ieee80211-1.1.8 ipw2200-1.0.9 im getting the same results. now when i try a manual configuration: $ifconfig eth1 10.0.16.250 netmask 255.255.248.0 $route add default gw 10.0.16.1 note: connection parameters provided by lan admin route spits out the following SIOCADDRT: Network is unreachable regarding the length of the WEP key, i am using a passphrase. i am unsure how to specify a particular length (either 64 bit or 128 bit) in the configuration as i did not see anything on this in the manpage for iwconfig. i have tried not using the passphrase and instead have tried the following config: modules_eth1=("iwconfig") key_RLC_WLAN="004A-77CB-B3 [1] enc open" preferred_aps=("RLC-WLAN") associate_order="forcepreferred" config_RLC_WLAN=("dhcp -oS") i arrived at this value by converting our passphrase (decimal) to hex. if i convert this value to binary i arrive at a value with 31 bits. however, i can still connect to the ap using this configuration, which makes me wonder why the length would be an issue. i read that passphrases aren't supported in the iwconfig manpage, but im thinking i can still connect so how could this be true? if there is a way to explicitly specify a 64 bit key or a 128 bit key please advise and i will try both as i'm unsure what the setting is on the router. in my past experience with wifi ap's once connected the issue is getting routing information. what im saying is if i can connect i should be able to get routing information, yes?
Try... key_RLC_WLAN="004A77CBB3 enc open"
after advised configuration change there has been no effect. here is output after the change (you can see i tried dhcp and manually setting connection parameters; also i should mention that i bring down wired connection during every test just to make sure there is no conflict [although i doubt there should be]): localhost nathan # /etc/init.d/net.eth1 restart * Caching service dependencies ... which: no java in (/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/sbin:/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/sbin:/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/sbin:/sbin:/bin:/usr/sbin:/usr/bin) [ ok ] * Starting eth1 * Configuring wireless network for eth1 * Trying to force preferred in case they are hidden * eth1 connected to "RLC-WLAN" at 00:40:96:5B:3B:52 * in managed mode (WEP enabled - open) * Bringing up eth1 * dhcp * Running dhcpcd ... [ !! ] localhost nathan # ifconfig eth1 eth1 Link encap:Ethernet HWaddr 00:12:F0:C4:65:9B BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:6866 errors:0 dropped:103384 overruns:0 frame:0 TX packets:13 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:723506 (706.5 Kb) TX bytes:8176 (7.9 Kb) Interrupt:11 Base address:0xc000 Memory:c0204000-c0204fff localhost nathan # ifconfig eth1 10.0.16.250 netmask 255.255.248.0 localhost nathan # route add default gw 10.0.16.1 localhost nathan # ping 10.0.16.1 PING 10.0.16.1 (10.0.16.1) 56(84) bytes of data. From 10.0.16.250 icmp_seq=1 Destination Host Unreachable From 10.0.16.250 icmp_seq=2 Destination Host Unreachable From 10.0.16.250 icmp_seq=3 Destination Host Unreachable --- 10.0.16.1 ping statistics --- 5 packets transmitted, 0 received, +3 errors, 100% packet loss, time 4022ms , pipe 3
I have exactly same problems, but with ipw2100. I had this configuration working, but it was sometimes last year, that I have used it last time. I keep my system up to date and at some point it has broken. I have tested with the stable versions of wpa_supplicant, ieee80211 and ipw2100 and with ~x86 versions, no difference. Also kernel-2.6.15 drivers fail. 2.16.14 drivers work with current version of wpa_supplicant.
I dropped wpa_supplicant and now it works, no problems getting address.
Ok, upstream problem it seems. Waiting for upstream to reply to http://hostap.epitest.fi/bugz/show_bug.cgi?id=97
