regenerate-seq-num

Changes the sequence numbers of the rules within a specified access control list (ACL) to provide flexibility in inserting new rules between existing rules.
Syntax
regenerate-seq-num [ start-sequence-value [ increment-value ] ]
Parameters
start-sequence-value
Specifies the sequence number assigned to the first rule. Values range from 1 through 65000. The default is 10.
increment-value
Specifies the increment between the regenerated sequence numbers. Values range from 1 through 100. The default is 10.
Modes

IPv4 ACL configuration mode

IPv6 ACL configuration mode

Usage Guidelines

This command is effective for all IPv4 ACL types: named or numbered; standard or extended.

This command is effective for IPv6 ACLs.

After resequencing, you do not need to rebind the ACL.

From FastIron 08.0.61, sequence regeneration settings (first sequence number and sequence interval number) are persistent, even following reload of the active unit.

Examples

The following example regenerates sequence numbers for a standard numbered IPv4 ACL. 

device# configure terminal
device(config)# ip access-list standard 18
device(config-std-ipacl-18)# regenerate-seq-number

The following example regenerates sequence numbers for an extended named IPv4 ACL, specifying that the first rule be numbered 100, with an increment of 15 between each sequence number. 

device# configure terminal
device(config)# ip access-list extended extACLtest_01
device(config-ext-ipacl-extACLtest_01)# regenerate-seq-number 100 15

The following example regenerates sequence numbers for an IPv6 ACL. 

device# configure terminal
device(config)# ipv6 access-list ACL6_01
device(config-ipv6-acces-list ACL6_01)# regenerate-seq-number

The following example demonstrates that non-default sequence regeneration is persistent following reload of the active unit. 

device# configure terminal
device(config)# ip access-list extended testACL
device(config-ext-ipacl-testACL)# permit ip host 1.1.1.111 host 2.2.2.111
device(config-ext-ipacl-testACL)# permit ospf any any
device(config-ext-ipacl-testACL)# permit pim any any

device(config-ext-ipacl-testACL)# show ip access-lists testACL
Extended IP access list testACL: 3 entries
10: permit ip host 1.1.1.111 host 2.2.2.111
20: permit ospf any any
30: permit pim any any

device(config-ext-ipacl-testACL)# regenerate-seq-number 100 100

device(config-ext-ipacl-testACL)# show ip access-lists testACL
Extended IP access list testACL: 3 entries
100: permit ip host 1.1.1.111 host 2.2.2.111
200: permit ospf any any
300: permit pim any any

device(config-ext-ipacl-testACL)# sequence 150 deny ip 20.20.20.96 0.0.0.15 any

device(config-ext-ipacl-testACL)# show ip access-lists testACL
Extended IP access list testACL: 4 entries
100: permit ip host 1.1.1.111 host 2.2.2.111
150: deny ip 20.20.20.96 0.0.0.15 any
200: permit ospf any any
300 permit pim any any

<Reload of active unit>

device(config-ext-ipacl-testACL)# show ip access-lists testACL
Extended IP access list testACL: 4 entries
100: permit ip host 1.1.1.111 host 2.2.2.111
150: deny ip 20.20.20.96 0.0.0.15 any
200: permit ospf any any
300 permit pim any any
History
Release version Command history
08.0.50 This command was introduced.
08.0.61 The command has been modified so that a non-default run of the command is persistent following device reload.
Parent topic: Commands O, P, Q, R, and Sa through Sh