12-24 Administration Guide

PPTP example

To enable a firewall to allow PPTP traffic, you must provision the firewall to allow inbound and outbound TCP packets specifically destined for port 1723. The source port may be dynamic, so often it is not useful to apply a compare function upon this portion of the control/negotiation packets. You must also set the firewall to allow inbound and outbound GRE packets, enabling transport of the tunnel payload.

From the Main Menu navigate to Display/Change IP Filter Set, and from the pop-up menu select Basic Firewall.

Main

 

 

System

 

Menu

 

 

Configuration

 

 

 

 

 

 

Select Display/Change Input Filter.

Display/Change Input Filter screen

Filter Sets

IP Filter

Sets

Display/Change

IP Filter Set

Basic

Firewall

+-#----

Source IP Addr----

Dest IP Addr------

Proto-Src.Port-D.Port--

On?-Fwd-+

+-------------------------------------------------------------------------

 

 

 

 

+

1

0.0.0.0

0.0.0.0

TCP

NC

=1723

Yes Yes

2

0.0.0.0

0.0.0.0

GRE

--

--

Yes Yes

 

 

 

 

 

For Input Filter 1 set the Destination Port information as shown below.

Change Input Filter 1

Enabled:Yes

Forward:Yes

Source IP Address:

0.0.0.0

Source IP Address Mask:

0.0.0.0

Dest. IP Address:

0.0.0.0

Dest. IP Address Mask:

0.0.0.0

Protocol Type:

TCP

Source Port Compare...

No Compare

Source Port ID:

0

Dest. Port Compare...

Equal

Dest. Port ID:

1723

Established TCP Conns. Only:

No

Page 166
Image 166
Netopia 4752 manual Pptp example

4752 specifications

The Netopia 4752 is a versatile networking device that serves as a digital subscriber line (DSL) modem and router, designed to provide high-speed internet connectivity and advanced networking capabilities for home and small office environments. This device is notable for its reliability and ease of use, making it a popular choice among users looking for seamless internet access.

One of the main features of the Netopia 4752 is its support for various DSL technologies, including ADSL and ADSL2+. This compatibility ensures that users can achieve optimal bandwidth and speed, even on legacy DSL lines. The modem’s capability to handle downstream speeds of up to 24 Mbps allows for smooth streaming, gaming, and browsing experiences.

Equipped with a robust built-in router, the Netopia 4752 offers multiple Ethernet ports for direct wired connections, accommodating multiple devices simultaneously. This feature is especially beneficial in environments where multiple users need to access the internet without latency. Additionally, the device supports wireless connectivity, enabling users to connect their laptops, smartphones, and other Wi-Fi-enabled devices effortlessly.

Security is a crucial aspect of the Netopia 4752’s functionality. The device incorporates a built-in firewall and supports various security protocols, including WPA and WPA2, ensuring that users’ data remains protected from unauthorized access. The user-friendly web-based interface facilitates easy configuration of security settings, making it accessible even for those with limited technical knowledge.

The Netopia 4752 also features advanced Quality of Service (QoS) settings that allow users to prioritize bandwidth for specific applications or devices. This capability is crucial for households or offices that demand high performance for video conferencing, streaming services, or online gaming.

In terms of characteristics, the Netopia 4752 boasts a compact form factor, making it easy to integrate into any workspace without occupying much space. Its durable design ensures longevity, providing reliable service over time.

Overall, the Netopia 4752 stands out as a dependable DSL modem and router solution, with its high-speed internet capabilities, security features, and flexible connectivity options suitable for both home and small office users who require efficient and effective internet access.