set routing prefix-list
The set routing prefix-list command creates an IPv4/IPv6 prefix list or an entry in an IPv4/IPv6 prefix list.
The delete routing prefix-list command deletes an IPv4/IPv6 prefix list or an entry from an IPv4/IPv6 prefix list.
Command Syntax
set routing prefix-list {ipv4-family <ipv4-prefix-name> | ipv6-family <ipv6-prefix-name>} [seq <sequence-number>] {deny|permit} {prefix <ipaddress/prefixlen> [ge <greater-equal-value>] [le <less-equal-value>] | prefix-any}
delete routing prefix-list {ipv4-family <ipv4-prefix-name> | ipv6-family <ipv6-prefix-name>} [seq <sequence-number>]deny|permit} {prefix <ipaddress/prefixlen> [ge <greater-equal-value>] [le <less-equal-value>] | prefix-any}
Parameter
Parameter | Description |
<ip4-prefix-name> | Specifies the name of an IPv4 prefix list. |
<ip6-prefix-name> | Specifies the name of an IPv6 prefix list. |
seq <sequence-number> | Optional. Specifies the sequence number of an entry in the IP prefix list. The value is an integer that ranges from 1 to 4294967295. NOTE: When configuring IP prefix list, it is strongly recommended to configure sequence number for each IP prefix list node. Otherwise, the precedence of this IP prefix list will be uncertain, and thus the desired IP filtering effect will not be achieved. |
{deny|permit} | Specifies whether the route is available for further processing when there is a match. The value could be deny or permit.
|
{prefix <ipaddress/prefixlen> | prefix-any} | Specifies an IP address/prefix length or all addresses. The value of prefix length is an integer that ranges from 1 to 32 for IPv4 addresses, and 1 to 128 for IPv6 addresses. When prefix-any is specified, it creates a prefix-list that matches all addresses. |
ge <greater-equal-value> | Optional. Specifies the lower threshold of the mask length. It can be used when an IP address/prefix length is specified. If ge greater-equal-value and le less-equal-value are not specified, the value of prefix length is the mask length. For IPv4:
For IPv6:
|
le <less-equal-value> | Optional. Specifies the upper threshold of the mask length. It can be used when an IP address/prefix length is specified. If ge greater-equal-value and le less-equal-value are not specified, the value of prefix length is the mask length. For IPv4:
For IPv6:
|
Example
Configure the IPv4 prefix list named p1 to permit only the routes with the mask length ranging from 8 to 16 on the network segment 35.0.0.0/8.
admin@Xorplus# set routing prefix-list ipv4-family p1 seq 1 permit prefix 35.0.0.0/8 ge 16 admin@Xorplus# commit
Configure the IPv6 prefix list named p2 to permit the routes with the mask length ranging from 32 to 64 bits.
admin@Xorplus# set routing prefix-list ipv6-family p2 seq 1 permit prefix ::/0 ge 32 le 64 admin@Xorplus# commit
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