If an outside user attempts to probe an unsupported port on your Router, an ICMP response packet
is automatically returned. This allows the outside user to know the Router exists. Your Router
supports anti-probing, which prevents the ICMP response packet from being sent. This keeps
outsiders from discovering your Router when unsupported ports are probed.
Figure 101 Maintenance > Remote MGMT > ICMP
Table 85 Maintenance > Remote MGMT > ICMP
LABEL
Respond to Ping
on
Secured Client IP
Address
23.8 SSH/SCP/SFTP Screen
Secure Shell (SSH) is a secure communication protocol that combines authentication and data
encryption to provide secure encrypted communication between two hosts over an unsecured
network. The following file transfer methods use SSH:
• Secure Copy Protocol (SCP) is a secure way of transferring files between computers. It uses port
22.
• SSH File Transfer Protocol or Secure File Transfer Protocol (SFTP) is an old way of transferring
files between computers. It uses port 22.
You can use SSH to securely access the Router's command line interface. Specify which interfaces
allow SSH access and from which IP address the access can come.
Chapter 23 Remote Management
DESCRIPTION
The Router will not respond to any incoming Ping requests when Disable is selected.
Select LAN to reply to incoming LAN Ping requests. Select WAN to reply to incoming
WAN Ping requests. Otherwise select LAN & WAN to reply to both incoming LAN and
WAN Ping requests.
A secured client is a "trusted" computer that is allowed to send Ping requests to the
Router.
Select All to allow any computer to send Ping requests to the Router.
Choose Range to just allow the computers with an IP address in the range that you
specify to send Ping requests to the Router.
139
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