ACE syntax in RADIUS servers

Nas-filter-Rule = " <permit|deny> in <ip|ip-protocol-value> from any to <any|host|<ip-addr>|ipv4-addr/mask|ipv6-address/prefix> [<tcp/udp-port|tcp/udp-port range>|icmp-type][cnt]

[HP-Nas-Rules-IPv6=<1|2>]

For an example of how to apply this VSA, see Configuring a FreeRADIUS server to filter IPv4 and IPv6 traffic for a client with correct credentials. .

Nas-filter-Rule = " <permit|deny> in <ip|ip-protocol-value> from any to <any|host|<ip-addr>|ipv4-addr/mask> [<tcp/udp-port|tcp/udp-port range|icmp-type] [cnt]

Nas-filter-Rule = : Standard attribute for filtering inbound IPv4 traffic from an authenticated client. When used without the VSA option (below) for filtering inbound IPv6 traffic from the client, drops the IPv6 traffic. See also Nas-filter-rule options.

HP-Nas-filter-Rule= : Legacy VSA for filtering inbound IPv4 traffic only from an authenticated client. Drops inbound IPv6 traffic from the client. See also Nas-filter-rule options.

{< permit | deny >}

Specifies whether to forward or drop the identified IP traffic type from the authenticated client. (For information on explicitly permitting or denying all inbound IP traffic from an authenticated client, or for implicitly denying all such IP traffic not already permitted or denied, see Configuration notes.)

in

Required keyword specifying that the ACL applies only to the traffic inbound from the authenticated client.

{<ip | ip-protocol-value>}

Options for specifying the type of traffic to filter.

ip

Applies the ACE to all IP traffic from the authenticated client.

ip-protocol-value

This option applies the ACE to the type of IP traffic specified by either a protocol number or by tcp, udp, icmp, or (for IPv4-only) igmp. The range of protocol numbers is 0-255. (Protocol numbers are defined in RFC 2780. For a complete listing, see "Protocol Registries" on the Web site of the Internet Assigned Numbers Authority at ( http://www.iana.com). Some examples of protocol numbers include:

1=ICMP

2=IGMP (IPv4 only)

6=TCP

17=UDP

41=IPv6

from any

Required keywords specifying the (authenticated) client source. (Note that a RADIUS-assigned ACL assigned to a port filters only the inbound traffic having a source MAC address that matches the MAC address of the client whose authentication invoked the ACL assignment.)

to

Required destination keyword.

host <ipv4-addr>

Specifies a single destination IPv4 address.

<ipv4-addr/<mask >

Specifies a series of contiguous destination addresses or all destination addresses in a subnet. The < mask > is CIDR notation for the number of leftmost bits in a packet's destination IPv4 address that must match the corresponding bits in the destination IPv4 address listed in the ACE. For example, a destination of 10.100.17.1/24 in the ACE means that a match occurs when an inbound packet (of the designated IPv4 type) from the authenticated client has a destination IPv4 address where the first three octets are 10.100.17. (The fourth octet is a wildcard, and can be any value up to 255.)

host <ipv6-addr>

Specifies a single destination IPv6 address. Note: Filtering IPv6 traffic requires the Standard Attribute(Nas-Filter-Rule)with the HP-Nas-Rules-IPv6 VSA set to 1. See Nas-filter-rule options.

<ipv6-addr/<prefix>

Specifies a series of contiguous destination addresses or all destination addresses in a subnet. The < prefix > specifies the number of leftmost bits in a packet's destination IPv6 address that must match the corresponding bits in the destination IPv6 address listed in the ACE. For example, a destination of FE80::1b:127/112 in the ACE means that a match occurs when an inbound packet (of the designated IPv6 type) from the authenticated client has a destination IPv6 address where the first 112 are FE80::1b. (The last 16 bits in the address configured in the ACE form a "wildcard", and can be any value from 0 to FFFF.)

Optional ICMP type specifier. This can be either a keyword or an ICMP type number. For a listing of numbers and types, see Displaying the current RADIUS-assigned ACL activity on the switch.