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Page 2 | AlliedWare™ OS How To Note: VPNs for Corporate Networks
How to make voice traffic high priority ........................................................................................... 30
How to prioritise outgoing VoIP traffic from the headquarters router ............................ 31
How to prioritise outgoing VoIP traffic from the branch office
1
router ......................... 33
How to prioritise outgoing VoIP traffic from the branch office 2 router ......................... 35
How to test your VPN solution ......................................................................................................... 36
Configuration scripts for headquarters and branch offices ......................................................... 37
Before you use these scripts ....................................................................................................... 37
Headquarters VPN access concentrator's configuration ..................................................... 38
Branch office
1
AR440S configuration—the PPPoA site with VPN client access
and a fixed IP address ............................................................................................................ 43
Branch office 2 AR440S configuration—the PPPoEoA site with a dynamically
assigned IP address ................................................................................................................. 48
Extra configuration scripts for lab testing the VPN solution ...................................................... 52
ISP's PPPoE access concentrator configuration ...................................................................... 52
Hotel's NAT gateway firewall configuration ............................................................................ 53
Which products and software versions does this
information apply to?
The information provided in this document applies to the following products:
z AR400 Series routers
z AR750S and AR770S routers
z Rapier and Rapier i Series switches
z AT-8800 Series switches
running software version 2.6.6 and above. However, prioritising the voice traffic requires
Software Quality of Service, which is available with version 2.7.
1
and above.
On the roaming VPN clients, we tested this solution with Microsoft® Windows Virtual
Private Network.
This How To Note shows how to prioritise VoIP traffic at the offices, but does not show how
to set up the VoIP facility itself on your VPN client PCs. You need to find suitable PC
software to provide that.
Related How To Notes
Allied Telesis offers How To Notes with a wide range of VPN solutions, from quick and
simple solutions for connecting home and remote offices, to advanced multi-feature setups.
Notes also describe how to create a VPN between an Allied Telesis router and equipment
from a number of other vendors.
For a complete list of VPN How To Notes, see the Overview of VPN Solutions in How To Notes
in the How To Library at www.alliedtelesis.com/resources/literature/howto.aspx.