Filter
Top Products
Vigor3300 Series User’s Guide
62
3
3
.
.
3
3
.
.
4
4
P
P
o
o
r
r
t
t
B
B
l
l
o
o
c
c
k
k
The Port Block function provides a user to set lots of proprietary port numbers. Packets will
be dropped if destination ports (both TCP and UCP) of packets with these assigned port
numbers are on WAN and LAN. The advantage of this feature is to filter some unnecessary
packets or attacking packets on Internet environment or LAN network. Vigor3300 Series
supports ten port numbers to be blocked.
In the Advanced group, click Port Block option. You will get the following page.
Index The number of each entry.
Status User can Disable or Enable this port to be blocked.
Port Number Assign a port number to be blocked in system.
Click Apply to finish this setting. The default port setting for V3300B and 3300B+ is 135.
3
3
.
.
3
3
.
.
5
5
D
D
D
D
N
N
S
S
S
S
e
e
t
t
u
u
p
p
The Dynamic DNS function allows the router to update its online WAN IP address, which
assigned by ISP or other DHCP server to the specified Dynamic DNS server. Once the router
is online, you will be able to use the registered domain name to access the router or internal
virtual servers from the Internet. DDNS is more popular on dynamic IP users, who typically
receive dynamic, frequently-changing IP addresses from their service provider.
Before you set up the Dynamic DNS function, you have to subscribe free domain names from
the Dynamic DNS service providers. The router provides up to ten accounts for the function
and supports the following providers: www.dynsns.org, www.no-ip.com, www.dtdns.com,
www.changeip.com, www.ddns.cn. You should visit their websites for registering your own
domain name on the router.