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Page 91 / 143 Scroll up to view Page 86 - 90
Archer C2
AC750 Wireless Dual Band Gigabit Router
- 81 -
Figure 4-69 Basic Security
Firewall -
A firewall protects your network from the outside world. Here you can enable or
disable the router’s firewall.
SPI Firewall
- SPI (Stateful Packet Inspection, also known as dynamic packet filtering)
helps to prevent cyber attacks by tracking more state per session. It validates that the
traffic passing through the session conforms to the protocol. SPI Firewall is enabled by
factory default. If you want all the computers on the LAN exposed to the outside world,
you can disable it.
VPN -
VPN Passthrough must be enabled if you want to allow VPN tunnels using VPN
protocols to pass through the router.
PPTP
Passthrough
- Point-to-Point Tunneling Protocol (PPTP) allows the
Point-to-Point Protocol (PPP) to be tunneled through an IP network. To allow PPTP
tunnels to pass through the router, click
Enable
.
L2TP Passthrough
- Layer Two Tunneling Protocol (L2TP) is the method used to
enable Point-to-Point sessions via the Internet on the Layer Two level. To allow L2TP
tunnels to pass through the router, click
Enable
.
IPSec Passthrough
- Internet Protocol security (IPSec) is a suite of protocols for
ensuring private, secure communications over Internet Protocol (IP) networks, through
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Archer C2
AC750 Wireless Dual Band Gigabit Router
- 82 -
the use of cryptographic security services. To allow IPSec tunnels to pass through the
router, click
Enable
.
ALG -
It is recommended to enable Application Layer Gateway (ALG) because ALG allows
customized Network Address Translation (NAT) traversal filters to be plugged into the
gateway to support address and port translation for certain application layer "control/data"
protocols such as FTP, TFTP, H323 etc.
FTP ALG
- To allow FTP clients and servers to transfer data across NAT, click
Enable
.
TFTP ALG
- To allow TFTP clients and servers to transfer data across NAT, click
Enable
.
H323 ALG
- To allow Microsoft NetMeeting clients to communicate across NAT, click
Enable
.
SIP ALG -
To allow SIP clients and servers to communicate across NAT,click
Enable.
RTSP ALG
- To allow some media player clients to communicate with some streaming
media servers across NAT, click
Enable
.
Click the
Save
button to save your settings.
4.13.2
Advanced Security
Choose menu “
Security
→
Advanced Security
”, and then you can protect the router from being
attacked by TCP-SYN Flood, UDP Flood and ICMP-Flood in the screen as shown in Figure 4-70.
Figure 4-70 Advanced Security
DoS Protection -
Denial of Service protection. Check the Enable or Disable button to
enable or disable the DoS protection function. Only when it is enabled, will the flood filters be
enabled.
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Archer C2
AC750 Wireless Dual Band Gigabit Router
- 83 -
Note:
Dos Protection will take effect only when the
Traffic Statistics
in “
System Tool
→
Statistics
” is enabled.
Enable ICMP-FLOOD Attack Filtering
-
Enable or Disable the ICMP-FLOOD Attack
Filtering.
ICMP-FLOOD Packets Threshold (5~3600)
-
The default value is 50. Enter a value
between 5
~
3600. When the current ICMP-FLOOD Packets number is beyond the set value,
the router will startup the blocking function immediately.
Enable UDP-FLOOD Filtering
-
Enable or Disable the UDP-FLOOD Filtering.
UDP-FLOOD Packets Threshold (5~3600)
-
The default value is 500. Enter a value
between 5
~
3600. When the current UPD-FLOOD Packets number is beyond the set value,
the router will startup the blocking function immediately.
Enable TCP-SYN-FLOOD Attack Filtering
-
Enable or Disable the TCP-SYN-FLOOD
Attack Filtering.
TCP-SYN-FLOOD Packets Threshold (5~3600)
-
The default value is 50. Enter a value
between 5
~
3600. When the current TCP-SYN-FLOOD Packets numbers is beyond the set
value, the router will startup the blocking function immediately.
Forbid Ping Packet From LAN Port
-
Enable or Disable Forbid Ping Packet From LAN Port.
The default setting is disabled. If enabled, the ping packet from LAN cannot access the router.
This function can be used to defend against some viruses.
Click the
Save
button to save the settings.
Click the
Blocked DoS Host List
button to display the DoS host table by blocking.
4.13.3
Local Management
Choose menu “
Security
→
Local Management
”, and then you can configure the management
rule in the screen as shown in Figure 4-71. The management feature allows you to deny
computers in LAN from accessing the router.
Page 94 / 143
Archer C2
AC750 Wireless Dual Band Gigabit Router
- 84 -
Figure 4-71 Local Management
By default, the radio button “
All the PCs on the LAN are allowed to access the Router's
Web-Based Utility
” is checked. If you want to allow PCs with specific MAC Addresses to access
the Setup page of the router's Web-Based Utility locally from inside the network, check the radio
button “
Only the PCs listed can browse the built-in web pages to perform Administrator
tasks
”, and then enter each MAC Address in a separate field. The format for the MAC Address is
XX:XX:XX:XX:XX:XX (X is any hexadecimal digit). Only the PCs with MAC address listed can use
the password to browse the built-in web pages to perform Administrator tasks while all the others
will be blocked.
After click the
Add
button, your PC's MAC Address will be placed in the list above.
Click the
Save
button to save your settings.
Note:
If your PC is blocked but you want to access the router again, use a pin to press and hold the
WPS/Reset
button
(hole) on the back panel for about 5 seconds to reset the router’s factory
defaults on the router’s Web-Based Utility.
4.13.4
Remote Management
Choose menu “
Security
→
Remote Management
”, and then you can configure the Remote
Management function in the screen as shown in Figure 4-72. This feature allows you to manage
your router from a remote location via the Internet.
Page 95 / 143
Archer C2
AC750 Wireless Dual Band Gigabit Router
- 85 -
Figure 4-72 Remote Management
Web Management Port -
Web browser access normally uses the standard HTTP service
port 80. This router's default remote management web port number is 80. For greater security,
you can change the remote management web port to a custom port by entering that number
in the box provided. Choose a number between 1 and 65534 but do not use the number of
any common service port.
Remote Management IP Address
-
This is the current address you will use when accessing
your router from the Internet. This function is disabled when the IP address is set to the
default value of 0.0.0.0. To enable this function change 0.0.0.0 to a valid IP address. If set to
255.255.255.255, then all the hosts can access the router from internet.
Note:
1.
To access the router, you should type your router's WAN IP address into your browser's
address (in IE) or Location (in Navigator) box, followed by a colon and the custom port
number. For example, if your router's WAN address is 202.96.12.8, and the port number
used is 8080, please enter http://202.96.12.8:8080 in your browser. Later, you may be asked
for the router's password. After successfully entering the username and password, you will
be able to access the router's web-based utility.
2.
Be sure to change the router's default password to a very secure password
.
4.14 Parent Control
Choose menu “
Parent Control
”, and then you can configure the parent control in the screen as
shown in Figure 4-73. The Parent Control function can be used to control the Internet activities of
the child, limit the child to access certain websites and restrict the time of surfing.

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