D-Link DGS-510 Reference Manual page 358

DGS-1510 Series Gigabit Ethernet SmartPro Switch CLI Reference Guide
Usage Guideline
This command is used to add or delete a server network address to which the traffic from
unauthenticated client host will not be blocked to by the JWAC switch. Any servers (like
update.microsoft.com or some sites of Antivirus software companies, which ActiveX needs to access
to accomplish the authentication before the client passes the authentication) should be added with its
IP address or with the network address. By adding the network address, an entry can serve multiple
update servers on the same network. Multiple update server addresses or network addresses can be
configured.
Example
This example shows how to add a JWAC update server with the network address 10.90.90.0/24 and
TCP port 80.
Switch# configure terminal
Switch(config)# jwac update-server 10.90.90.90/24 tcp 80
Switch(config)#
40-13 jwac udp-filtering
This command is used to enable the JWAC UDP filtering function. Use the no form of this command
to disable the JWAC UDP filtering function.
jwac udp-filtering
no jwac udp-filtering
Parameters
None.
Default
By default, this option is enabled.
Command Mode
Global Configuration Mode.
Command Default Level
Level: 12.
Usage Guideline
When the UDP filtering feature is enabled, all UDP and ICMP packets except for DHCP and DNS
packets from unauthenticated hosts will be dropped.
Example
This example shows how to enable the JWAC UDP filtering function.
Switch# configure terminal
Switch(config)# jwac udp-filtering
Switch(config)#
40-14 jwac virtual-ip
This command is used to configure the JWAC virtual IP address which is used to exchange messages
with hosts. Use the no form of this command to revert to the default setting.
jwac virtual-ip {ipv4 IP-ADDRESS | ipv6 IPV6-ADDRESS | url STRING}
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