The content of this topic has been archived on 16 Apr 2018. There are no obvious gaps in this topic, but there may still be some posts missing at the end.
I am trying to set up an openvpn server on a netgear WGT634u (running smoothly kamikaze 7.09)
i followed the tuto at http://oldwiki.openwrt.org/OpenVPNHowTo.html
I am struggling with the startup scripts.
all I have read say
"# Creates TAP devices for use by OpenVPN and bridges them into OpenWRT Bridge"
But my scripts shows /dev/tap device does not exist.
How do I set this virtual interface ?
I did not find any explanation
Thanks for the help
any help ?
Do you have kmod-tun installed?
Thanks for the investigation MMCM.
I think it is installed, as shown below ('tun' module, I guess)
I have printed the log when i try to launch the Openvpn service
I still have a "Cannot open TUN/TAP dev /dev/tap0: No such file or directory (errno=2)"
Any Idea ?
root@PTC2:/etc/openvpn# lsmod
Module Size Used by Tainted: P
tun 6496 0
usb_storage 27664 2
sd_mod 18416 3
scsi_mod 71968 2 usb_storage,sd_mod
ehci_hcd 28016 0
ohci_hcd 14064 0
ath_pci 94384 0
wlan_xauth 480 0
wlan_wep 4000 0
wlan_tkip 9664 0
wlan_ccmp 5408 2
wlan_acl 1888 0
ath_rate_minstrel 7840 1
ath_hal 271168 3 ath_pci,ath_rate_minstrel
wlan_scan_sta 8736 0
wlan_scan_ap 2624 0
wlan 146432 10 ath_pci,wlan_xauth,wlan_wep,wlan_tkip,wlan_ccmp,wlan_acl,ath_rate_minstrel,wlan_scan_sta,wlan_scan_ap
ppp_async 9664 0
ppp_generic 20000 1 ppp_async
slhc 5408 1 ppp_generic
crc_ccitt 1024 1 ppp_async
vfat 8512 0
fat 42448 1 vfat
ext3 97040 0
jbd 54672 1 ext3
ext2 39952 1
usbcore 102032 4 usb_storage,ehci_hcd,ohci_hcd
nls_base 4416 2 vfat,fat
switch_robo 4048 0
switch_core 5088 1 switch_robo
diag 8272 0root@PTC2:/etc/openvpn# openvpn server.ovpn
Mon Jul 6 16:52:37 2009 OpenVPN 2.0.9 mipsel-linux [SSL] [LZO] [EPOLL] built on Jun 4 2007
Mon Jul 6 16:52:37 2009 Static Encrypt: Cipher 'BF-CBC' initialized with 128 bit key
Mon Jul 6 16:52:37 2009 Static Encrypt: Using 160 bit message hash 'SHA1' for HMAC authentication
Mon Jul 6 16:52:37 2009 Static Decrypt: Cipher 'BF-CBC' initialized with 128 bit key
Mon Jul 6 16:52:37 2009 Static Decrypt: Using 160 bit message hash 'SHA1' for HMAC authentication
Mon Jul 6 16:52:37 2009 Note: Cannot open TUN/TAP dev /dev/net/tun: No such file or directory (errno=2)
Mon Jul 6 16:52:37 2009 Note: Attempting fallback to kernel 2.2 TUN/TAP interface
Mon Jul 6 16:52:37 2009 Cannot open TUN/TAP dev /dev/tap0: No such file or directory (errno=2)
Mon Jul 6 16:52:37 2009 Exiting(Last edited by nicolo on 6 Jul 2009, 15:57)
Thanks for the investigation MMCM.
I think it is installed, as shown below ('tun' module, I guess)
I have printed the log when i try to launch the Openvpn service
I still have a "Cannot open TUN/TAP dev /dev/tap0: No such file or directory (errno=2)"Any Idea ?
Try to execute
openvpn --mktun --dev tap0and see what happens. This must create /dev/tap0 device. I use OpenVPN bridge on my home router.
Thanks rpra but
root@PTC2:~# openvpn --mktun --dev tap0
Tue Jul 7 08:10:30 2009 Note: Cannot open TUN/TAP dev /dev/net/tun: No such file or directory (errno=2)
Tue Jul 7 08:10:30 2009 Note: Attempting fallback to kernel 2.2 TUN/TAP interface
Tue Jul 7 08:10:30 2009 Cannot open TUN/TAP dev /dev/tap0: No such file or directory (errno=2)... still don't work
Gotcha.
I just typed
cp /dev/null /dev/tap0prior to launching the openvpn service.
and my openvpn client can connect remotely to the netgear now
The discussion might have continued from here.