User's Manual

Table Of Contents

Field Name Description

Source IP

address [/prefix

length]

Enter the source IP address of a LAN side host for which you wish to filter/block outgoing traffic

for the specified protocol(s).

Note: The address specified here can be a particular address or a block of IP addresses on a

given network subnet. This is done by appending the associated routing "/prefix" length

decimal value (preceded with the slash) to the addresses. A valid decimal routing prefix is

required for defining the subnet mask per CIDR notation.

Source Port (port

or port:port)

Set the outgoing host port (or range of ports) for the above host (or range of hosts defined by

optional routing or "/prefix" subnet mask) to define the ports profile for which egress traffic

will be filtered from reaching the specified destination(s).

Destination IP

address

Enter the destination IP address of a LAN side host for which you wish to filter/block outgoing

traffic for the specified protocol(s).

Note: The address specified here can be a particular address or a block of IP address on a given

network subnet. This is done through appending the address with the routing " /prefix " length

decimal value (preceded with the slash) associated. A valid decimal routing prefix is required

for defining the subnet mask per CIDR notation.

estination Port

(port or port:-

port)

Set the destination host port (or range of ports) for the above host (or range of hosts) to define

the destination port profile for which the filtered host egress traffic will be filtered from reach-

ing the otherwise intended destination(s), e.g., to block the traffic to those ports on, say, a

computer external to the local network.

IP Filtering - Incoming

On this page, you can add an incoming filter when refusal of data from the WAN to the LAN is desired.

Note: This option is not available in the SR515ac model.

1. In the left navigation bar, click Advanced Setup > Security > IP Filtering > Incoming and then click Add. The following page

appears.