Manage Device Security
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S350 Series 8-Port Gigabit Ethernet Smart Managed Pro Switch Models GS308T and GS310TP
You can either enter the port range yourself or select one of the following
protocols from the menu:
• The destination IP TCP port protocols are domain, echo, ftp, ftpdata,
www-http, smtp, telnet, pop2, pop3, and bgp.
• The destination IP UDP port protocols are domain, echo, snmp, ntp, rip,
time, who, and tftp.
Each of these values translates into its equivalent port number, which is used as
both the start and end of the port range. Select Other from the menu to enter a
port number. If you select Other from the menu but leave the field blank, it means
any.
The wildcard mask determines which bits are used and which bits are ignored. A
wildcard mask of 0.0.0.0 indicates that none of the bits are important. A wildcard
of 255.255.255.255 indicates that all of the bits are important.
• Dst. In the Dst field, enter a destination IP address, using dotted-decimal notation, to
be compared to a packet’s destination IP address as a match criterion for the selected
IP ACL rule:
- If you select the IP Address radio button, enter an IP address with a relevant
wildcard mask to apply this criteria. If this field is left empty, it means any.
- If you select the Host radio button, the wildcard mask is configured as 0.0.0.0. If
this field is left empty, it means any.
The wildcard mask determines which bits are used and which bits are ignored. A
wildcard mask of 0.0.0.0 indicates that none of the bits are important. A wildcard of
255.255.255.255 indicates that all of the bits are important.
• Dst L4. The options are available only when the protocol is set to TCP or UDP. Use the
destination L4 port option to specify relevant matching conditions for L4 port numbers
in the extended ACL rule.
You can select either the Port radio button or the Range radio button:
- If you select the Port radio button, you can either enter the port number yourself
or select one of the following protocols from the menu.
• The destination IP TCP port protocols are domain, echo, ftp, ftpdata,
www-http, smtp, telnet, pop2, pop3, and bgp.
• The destination IP UDP port protocols are domain, echo, snmp, ntp, rip,
time, who, and tftp.
Each of these values translates into its equivalent port number, which is used as
both the start and end of the port range.
Select Other from the menu to enter a port number. If you select Other from the
menu but leave the field blank, it means any.
The only relevant matching condition for L4 port numbers is Equal. This means
that an IP ACL rule matches only if the Layer 4 source port number is equal to the
specified port number or port protocol.
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