TRENDnet TEW-633GR User Manual page 44

DMZ IP Address
Specify the LAN IP address of the LAN computer that you want to have unrestricted
Internet communication. If this computer obtains its address automatically using DHCP,
then you may want to make a static reservation on the
that the IP address of the DMZ computer does not change.
Non-UDP/TCP/ICMP LAN Sessions
When a LAN application that uses a protocol other than UDP, TCP, or ICMP initiates a session
to the Internet, the router's NAT can track such a session, even though it does not recognize
the protocol. This feature is useful because it enables certain applications (most importantly a
single VPN connection to a remote host) without the need for an ALG.
Note that this feature does not apply to the DMZ host (if one is enabled). The DMZ host always
handles these kinds of sessions.
Enable
Enabling this option (the default setting) enables single VPN connections to a remote host.
(But, for multiple VPN connections, the appropriate VPN ALG must be used.) Disabling
this option, however, only disables VPN if the appropriate VPN ALG is also disabled.
Application Level Gateway (ALG) Configuration
Here you can enable or disable ALGs. Some protocols and applications require special
handling of the IP payload to make them work with network address translation (NAT). Each
ALG provides special handling for a specific protocol or application. A number of ALGs for
common applications are enabled by default.
PPTP
Allows multiple machines on the LAN to connect to their corporate networks using PPTP
protocol. When the PPTP ALG is enabled, LAN computers can establish PPTP VPN
connections either with the same or with different VPN servers. When the PPTP ALG is
disabled, the router allows VPN operation in a restricted way -- LAN computers are
typically able to establish VPN tunnels to different VPN Internet servers but not to the
same server. The advantage of disabling the PPTP ALG is to increase VPN performance.
Enabling the PPTP ALG also allows incoming VPN connections to a LAN side VPN server
(refer to Virtual
IPSec (VPN)
Allows multiple VPN clients to connect to their corporate networks using IPSec. Some
VPN clients support traversal of IPSec through NAT. This option may interfere with the
operation of such VPN clients. If you are having trouble connecting with your corporate
network, try disabling this option.
Check with the system administrator of your corporate network whether your VPN client
supports NAT traversal.
Note that L2TP VPN connections typically use IPSec to secure the connection. To achieve
multiple VPN pass-through in this case, the IPSec ALG must be enabled.
RTSP
Allows applications that use Real Time Streaming Protocol to receive streaming media
from the internet. QuickTime and Real Player are some of the common applications using
this protocol.
Server).
Basic → Network Settings page so
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