Ubuntu 8.10 VPN routing via WLAN

After upgrading to Ubuntu 8.10 I was not able to ping any host via the established VPN connection to office anymore. The VPN connection succeeds but the routing of IP traffic via WLAN device to that VPN network does not work. The solution was to enable the IP traffic forwarding in /etc/syctl.conf file, changing the following options to:

#### /etc/sysctl.conf #############
# Uncomment the next line to enable packet forwarding for IPv4
net.ipv4.ip_forward=1

# Uncomment the next line to enable packet forwarding for IPv6
net.ipv6.conf.all.forwarding=1
#### end

These settings are activated on each boot. To activate the new settings at runtime wihtout booting, call command

$ sudo sysctl -p