Astak R4020A - User Manual - Manual (Page 51)

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Item Description
WAN Access Type Select Static IP type to access the WAN.
IP Address Input the IP address that provided by your ISP.
Subnet Mask Input the Subnet Mask provided by your ISP.
Default Gateway Input the Default Gateway that provided by your ISP.
MTU Size
Maximum Transfer Unit (MTU) determines the largest size of
a packet that can be sent over a network.
You can set the MTU size between 1400 and 1500 bytes.
The default value is 1500.
DNS 1-3
Input the Domain Name Server (DNS) address that provided
by your ISP. You can set up to three DNS addresses.
Clone MAC Address
There are two ways to clone MAC address.
You can manually input the MAC address in textbox, and
click the
button to save it; or click the
button to copy the MAC address from your
network card automatically.
Enable UPnP
Check the box to enable Universal Plug and Play (UPnP)
function.
The default is enabled.
Enable IGMP Proxy
This function is used to intercept Internet Group
Management Protocol (IGMP) packets between the router
and other clients to setup a multicast group.
The default is enabled.
Enable Ping Access on
WAN
This function is used to allow access Ping on WAN port.
The default is not enabled.
Enable Web Server Access
on WAN
This function is used to allow access the Web Interface from
WAN port.
The default is not enabled.
Enable IPsec pass through
on VPN connection
This function is used to allow Internet Protocol Security
(IPsec) packets from VPN connection pass through the
router.
The default is enabled.
Enable PPTP pass through
on VPN connection
This function is used to allow Point to Point Tunneling
Protocol (PPTP) packets from VPN connection pass through
the router.
The default is enabled.
Enable L2TP pass through
on VPN connection
This function is used to allow Layer 2 Tunneling Protocol
(L2TP) packets from VPN connection pass through the
router.
The default is enabled.