Reserve dedicated bandwidth

Reserve dedicated bandwidth for a realtime traffic such as (hosted) Voice Over IP (VOIP) server.

In this scenario we will create a pipe dedicated for traffic going to and coming from our realtime application. For the sample we presume a SIP trunk or hosted Voice Over IP (VOIP) server.

For this example we presume a requirement of 4 uncompressed voice channels of 64 kbps, resulting in a total bandwidth of 256 kbps. The internet connection in this example has 10 Mbps Download and 1 Mbps Upload.

Shaping hosted VOIP / SIP trunk sample

To start go to Firewall ‣ Shaper ‣ Pipes.

Step 1 - Create Upload and Download Pipes

On the Pipes tab click the + button in the lower right corner. An empty Edit Pipe screen will popup.

Create Pipe For Upload (To our VOIP Server)

enabled	Checked	Check to enable the pipe
bandwidth	256	Numeric value of the desired bandwidth
bandwidth Metric	Kbit/s	Metric to use with the numeric value
mask	(Empty)	Used for auto queueing, empty for our sample
description	PipeUp-256kbps	Free field, enter something descriptive

Create Pipe For Upload (Other Traffic = 1024 kbps - 256 kbps = 768 kbps)

enabled	Checked	Check to enable the pipe
bandwidth	768	Numeric value of the desired bandwidth
bandwidth Metric	Kbit/s	Metric to use with the numeric value
mask	(Empty)	Used for auto queueing, empty for our sample
description	PipeUp-768kbps	Free field, enter something descriptive

Create Pipe For Download (From our VOIP Server)

enabled	Checked	Check to enable the pipe
bandwidth	256	Numeric value of the desired bandwidth
bandwidth Metric	Kbit/s	Metric to use with the numeric value
mask	(Empty)	Used for auto queueing, empty for our sample
description	PipeDown-256kbps	Free field, enter something descriptive

Create Pipe For Download (Other Traffic = 10240 kbps - 256 kbps = 9984 kbps )

enabled	Checked	Check to enable the pipe
bandwidth	9984	Numeric value of the desired bandwidth
bandwidth Metric	Kbit/s	Metric to use with the numeric value
mask	(Empty)	Used for auto queueing, empty for our sample
description	PipeDown-9984kbps	Free field, enter something descriptive

Step 2 - Create Rules

On the Rules tab click the + button in the lower right corner. An empty Edit rule screen will popup.

Create a rule for traffic directed towards the VOIP Server (Upload).

sequence	11	Auto generated number, overwrite only when needed
interface	WAN	Select the interface connected to the internet
proto	ip	Select the protocol, IP in our example
source	any	The source IP to shape, leave on any
src-port	any	The source port to shape, leave on any
destination	172.10.2.1	The IP address of our VOIP server
dst-port	any	Use any of the destination port if static
target	PipeUP-256kbps	Select the Upload 256 kbps Pipe
description	ShapeVOIPUpload	Enter a descriptive name

Create a rule for traffic coming from the VOIP Server (Download).

sequence	21	Auto generated number, overwrite only when needed
interface	WAN	Select the interface connected to the internet
proto	ip	Select the protocol, IP in our example
source	172.10.2.1	The IP address of our VOIP server
src-port	any	The source port to shape, leave on any
destination	any	The destination IP to shape, leave on any
dst-port	any	The destination port to shape, leave on any
target	PipeDown256kbps	Select the Download 256 kbps Pipe
description	ShapeVOIPDown	Enter a descriptive name

Create a rule for all other internet upload traffic

sequence	31	Auto generated number, overwrite only when needed
interface	WAN	Select the interface connected to the internet
proto	ip	Select the protocol, IP in our example
source	192.168.1.0/24	The source IPs to shape, our LAN network
src-port	any	The source port to shape, leave on any
destination	any	the destination address, leave in any
dst-port	any	Use any of the destination port if static
target	PipeUp-768kbps	Select the Upload 768 kbps Pipe
description	ShapeUpload	Enter a descriptive name

Create a rule for all other internet download traffic

sequence	41	Auto generated number, overwrite only when needed
interface	WAN	Select the interface connected to the internet
proto	ip	Select the protocol, IP in our example
source	any	The source IP to shape, leave on any
src-port	any	The source port to shape, leave on any
destination	192.168.1.0/24	The destination IPs to shape, our LAN network
dst-port	any	The destination port to shape, leave on any
target	PipeDown-9984kbps	Select the Download 256Kbps Pipe
description	ShapeDown	Enter a descriptive name

Note

Be aware of the sequence! It is important to make sure the right traffic is passed to the right pipe.

Now press apply to activate the traffic shaping rules.

Screenshot Rules