Alcatel-Lucent 6850-48 Verweisanleitung
IP Commands
OmniSwitch CLI Reference Guide
September 2009
page 32-21
ip service
Enables (opens) or disables (closes) well-known TCP/UDP service ports (i.e., SSH, telnet, FTP, etc.).
Selectively enabling or disabling these types of ports provides an additional method for protecting against
denial of service (DoS) attacks.
Selectively enabling or disabling these types of ports provides an additional method for protecting against
denial of service (DoS) attacks.
ip service {all | service_name | port service_port}
no ip service {all | service_name | port service_port}
Syntax Definitions
all
Configures access to all TCP/UDP ports.
service_name
The name of the TCP/UDP service to enable or disable. (Refer to the
table in the “Usage Guidelines” section below for a list of supported
service names.)
table in the “Usage Guidelines” section below for a list of supported
service names.)
service_port
A TCP/UDP service port number. Configures access by port number
rather than by service name. (Refer to the table in the “Usage Guide-
lines” section below for a list of supported service names.)
rather than by service name. (Refer to the table in the “Usage Guide-
lines” section below for a list of supported service names.)
Defaults
All TCP/UDP ports are open by default.
Platforms Supported
OmniSwitch 6400, 6850, 6855, 9000, 9000E
Usage Guidelines
• This command only applies to TCP/UDP service ports opened by default. It does not affect ports that
are opened by applications, such as RIP, BGP, etc.
• Use the all option with this command to configure access to all well-known TCP/UDP service ports.
• To designate which port to enable or disable, specify either the name of a service or the well-known
port number associated with that service. Note that specifying a name and a port number in a single
command line is not supported.
command line is not supported.
• When using service names, it is possible to specify more than one service in a single command line by
entering each service name separated by a space. See the examples below.
• When specifying a service port number, note that the port keyword is required and that only one port
number is allowed in a single command.
• The following table lists the ip service command options for specifying TCP/UDP services and also
includes the well-known port number associated with each service:
service name
port
ftp
21
ssh
22