Deployment Guide

Deleting an IP Filter policy
You can delete a specified IP Filter policy. Deleting an IP Filter policy removes it from the temporary
buffer. To permanently delete the policy from the persistent database, run ipfilter --save . An active IP
Filter policy cannot be deleted.
1. Log in to the switch using an account with admin permissions, or an account associated with the
chassis role and having the OM permissions for the IPfilter RBAC class of commands.
2. Enter the ipFilter --delete command.
3. To permanently delete the policy, enter the ipfilter --save command.
IP Filter policy rules
An IP Filter policy consists of a set of rules. Each rule has an index number identifying the rule. There
can be a maximum of 256 rules within an IP Filter policy.
Each rule contains the following elements:
• Source Address: A source IP address or a group prefix.
• Destination Port: The destination port number or name, such as: Telnet, SSH, HTTP, HTTPS.
• Protocol: The protocol type. Supported types are TCP or UDP.
• Action: The filtering action taken by this rule, either Permit or Deny.
A traffic type and destination IP can also be specified
Source address
For an IPv4 filter policy, the source address has to be a 32-bit IPv4 address in dot decimal notation. The
group prefix has to be a CIDR block prefix representation. For example, 208.130.32.0/24 represents a
24-bit IPv4 prefix starting from the most significant bit. The special prefix 0.0.0.0/0 matches any IPv4
address. In addition, the keyword any is supported to represent any IPv4 address.
For an IPv6 filter policy, the source address has to be a 128-bit IPv6 address, in a format acceptable in
RFC 3513. The group prefix has to be a CIDR block prefix representation. For example, 12AB:
0:0:CD30::/64 represents a 64-bit IPv6 prefix starting from the most significant bit. In addition, the
keyword any is supported to represent any IPv6 address.
Destination port
For the destination port, a single port number or a port number range can be specified. According to
IANA ( http://www.iana.org ), ports 0 to 1023 are well-known port numbers, ports 1024 to 49151 are
registered port numbers, and ports 49152 to 65535 are dynamic or private port numbers. Well-known
and registered ports are normally used by servers to accept connections, while dynamic port numbers
are used by clients.
For an IP Filter policy rule, you can only select port numbers in the well-known port number range,
between 0 and 1023, inclusive. This means that you have the ability to control how to expose the
management services hosted on a switch, but not the ability to affect the management traffic that is
initiated from a switch. A valid port number range is represented by a dash, for example 7-30.
Alternatively, service names can also be used instead of port number. Table 47 lists the supported
service names and their corresponding port numbers.
Deleting an IP Filter policy
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