|
|
The Ethernet tab allows the management of Ethernet settings. The Ethernet tab has the following settings:
WAN Link Settings
Enable Bandwidth Management
DMZ Link Settings
LAN Link Settings
Proxy Management workstation Ethernet Address on WAN
Specifies the speed and duplex mode of the Ethernet connection to the WAN link. The default selection is Auto Negotiate because the Ethernet links automatically negotiate the speed and duplex mode of the Ethernet connection. The other choice, Force, with lists for speed and duplex, should be used only if your Ethernet card also forces these settings. You must force from both sides of your connection to enable this setting.
To enable Bandwidth Management on the SonicWALL, you must know the current bandwidth of your connection. Once you have this figure, you can select Enable Bandwidth Management on the Ethernet page, and then enter the amount of available WAN bandwidth in Kbps. Click Update to apply the changes to the SonicWALL. Now that you have enabled Bandwidth Management, you can begin configuring Rules to use bandwidth management.
Tip!
More information SonicWALL’s Bandwidth Management
features.
Tip!
Traffic inbound from the WAN to the LAN/DMZ based on a Rule using bandwidth
management is allowed as if there is no bandwidth management in place. However,
outbound traffic (reply packets) for traffic associated with an inbound Rule
is managed based on the configuration for that Rule.
Specifies the speed and duplex mode of the Ethernet connection to the LAN link. The default selection is Auto Negotiate because the Ethernet links automatically negotiate the speed and duplex mode of the Ethernet connection. The other choice, Force, with lists for speed and duplex, should be used only if your Ethernet card also forces these settings. You must force from both sides of your connection to enable this setting.
Specifies the speed and duplex mode of the Ethernet connection to the DMZ link. The default selection is Auto Negotiate because the Ethernet links automatically negotiate the speed and duplex mode of the Ethernet connection. The other choice, Force, with lists for speed and duplex, should be used only if your Ethernet card also forces these settings. You must force from both sides of your connection to enable this setting.
If you are managing the Ethernet connection from the LAN side of your network, this check box can be selected. The SonicWALL appliance takes the Ethernet address of the computer managing the SonicWALL appliance and proxies that address onto the WAN port of the SonicWALL. If you are not managing the SonicWALL appliance from the LAN side, the firmware looks for a random computer on the LAN creating a lengthy search process.
MTU (Maximum Transmission Unit) is the largest packet size that a router can forward without needing to fragment the packet. A network administrator may set the MTU allowed over a packet or frame-based network such as TCP/IP. If the MTU size is too large, it may require more transmissions if the packet encounters a router unable to handle a larger packet. If the packet size is too small, this could result in more packet header overhead and more acknowledgments that have to sent and processed.
Fragment outbound packets larger than WAN MTU - If outbound packets are larger that the value entered in the WAN MTU field, selecting Fragment outbound packets larger than WAN MTU fragments the packets into smaller sizes.
The default value in the WAN MTU field is 1500 octets based on the Ethernet standard MTU. The minimum value that can be set is 68. Decreasing the packet size may improve the performance of the network.