Public bug reported:
Hi,
When setting up Openvpn in bridged mode, openvpn is unable to configure
the tap interface on the client for dhcp from the remote LAN.
Server:
-----------------------------------------------------------------------------
...
server-bridge
push "route-gateway 192.168.1.1"
push "redirect-gateway def1 bypass-dhcp"
client-to-client
...
Client:
-----------------------------------------------------------------------------
...
up /etc/openvpn/dhcp.sh
down /etc/openvpn/dhcp.sh
...
dhcp.sh:
-----------------------------------------------------------------------------
#!/bin/bash
#
[ -x /sbin/dhclient] || exit 0
case $script_type in
up)
dhclient -v "${dev}"
;;
down)
dhclient -r "${dev}"
;;
esac
dhclient attempts to configure tap interface on client but eventually
times out.
Errors:
-----------------------------------------------------------------------------
...
Sat Jun 22 07:40:02 2013 TUN/TAP device tap0 opened
Sat Jun 22 07:40:02 2013 TUN/TAP TX queue length set to 100
Sat Jun 22 07:40:02 2013 /sbin/route add -net xxx.xxx.xxx.xxx netmask
255.255.255.255 gw 192.168.2.1
Sat Jun 22 07:40:02 2013 /sbin/route add -net 0.0.0.0 netmask 128.0.0.0 gw
192.168.1.1
SIOCADDRT: No such process
Sat Jun 22 07:40:02 2013 ERROR: Linux route add command failed: external
program exited with error status: 7
Sat Jun 22 07:40:02 2013 /sbin/route add -net 128.0.0.0 netmask 128.0.0.0 gw
192.168.1.1
SIOCADDRT: No such process
Sat Jun 22 07:40:02 2013 ERROR: Linux route add command failed: external
program exited with error status: 7
Sat Jun 22 07:40:02 2013 Initialization Sequence Completed
and on shutting down connection:
Errors:
-----------------------------------------------------------------------------
Sat Jun 22 07:42:28 2013 event_wait : Interrupted system call (code=4)
Sat Jun 22 07:42:28 2013 SIGTERM received, sending exit notification to peer
Sat Jun 22 07:42:31 2013 TCP/UDP: Closing socket
Sat Jun 22 07:42:31 2013 /sbin/route del -net 69.73.224.249 netmask
255.255.255.255
Sat Jun 22 07:42:31 2013 /sbin/route del -net 0.0.0.0 netmask 128.0.0.0
SIOCDELRT: No such process
Sat Jun 22 07:42:31 2013 ERROR: Linux route delete command failed: external
program exited with error status: 7
Sat Jun 22 07:42:31 2013 /sbin/route del -net 128.0.0.0 netmask 128.0.0.0
SIOCDELRT: No such process
Sat Jun 22 07:42:31 2013 ERROR: Linux route delete command failed: external
program exited with error status: 7
Sat Jun 22 07:42:31 2013 Closing TUN/TAP interface
Sat Jun 22 07:42:31 2013 SIGTERM[soft,exit-with-notification] received, process
exiting
** Affects: ubuntu
Importance: Undecided
Status: New
** Tags: dhcp openvpn
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https://bugs.launchpad.net/bugs/1193614
Title:
Openvpn is unable to assign dhcp from remote LAN in up/down scripts
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