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Home Documentation Junos OS Junos CLI Reference CLI Reference S

Junos CLI Reference

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source-ip-address-list

date_range 19-Nov-23
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Syntax

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source-ip-address-list address-list-name;

Hierarchy Level

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[edit forwarding-options access-security router-advertisement-guard policy policy-name discard (forwarding-options)]
[edit forwarding-options access-security router-advertisement-guard policy policy-name accept (Router Advertisement Guard Policy) match-list]

Description

Configure a list of IPv6 addresses for an IPv6 Router Advertisement (RA) guard policy to validate the source IPv6 address of an incoming RA message against the IPv6 addresses in this list. RA guard protects against rogue RA messages generated either maliciously or unintentionally by unauthorized or improperly configured routers connecting to the network segment. An RA guard policy is used to validate incoming RA messages on the basis of whether they match the conditions defined in the policy.

You can use a list of IPv6 addresses for validating RA messages as part of either an accept policy or a discard policy. Before you can include a list in an RA policy, you must configure the list name at the [edit policy-options prefix-list] hierarchy level. When RA guard is enabled by using an accept policy, any RA messages that match the conditions defined in the policy are forwarded, and RA messages that do not match the conditions are dropped. When RA guard is enabled by using a discard policy, any RA messages that match the conditions are dropped, and RA messages that do not match the conditions are forwarded.

Options

address-list-name

Configure a list of IPv6 addresses to use in an RA guard policy. The policy is used to validate the source of an incoming RA message by comparing the IPv6 address of the RA message to the IPv6 addresses contained in the list.

Required Privilege Level

interface—To view this statement in the configuration.

interface-control—To add this statement to the configuration.

Release Information

Statement introduced in Junos OS Release 15.1X53-D55.

Related Documentation

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