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36 lines
1.4 KiB
Markdown
36 lines
1.4 KiB
Markdown
# FHRP Group
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A first-hop redundancy protocol (FHRP) enables multiple physical interfaces to present a virtual [IP address](./ipaddress.md) (VIP) in a redundant manner. Examples of such protocols include:
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* [Hot Standby Router Protocol](https://en.wikipedia.org/wiki/Hot_Standby_Router_Protocol) (HSRP)
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* [Virtual Router Redundancy Protocol](https://en.wikipedia.org/wiki/Virtual_Router_Redundancy_Protocol) (VRRP)
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* [Common Address Redundancy Protocol](https://en.wikipedia.org/wiki/Common_Address_Redundancy_Protocol) (CARP)
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* [Gateway Load Balancing Protocol](https://en.wikipedia.org/wiki/Gateway_Load_Balancing_Protocol) (GLBP)
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When creating a new FHRP group, the user may optionally create a VIP as well. This IP address will be automatically assigned to the new group. (Virtual IP addresses can also be assigned after the group has been created.)
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## Fields
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### Protocol
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The wire protocol employed by cooperating servers to maintain the virtual [IP address(es)](./ipaddress.md) for the group.
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### Group ID
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The group's numeric identifier.
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### Name
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An optional name for the FHRP group.
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### Authentication Type
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The type of authentication employed by group nodes, if any.
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### Authentication Key
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The shared key used for group authentication, if any.
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!!! warning
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The authentication key value is stored in plaintext in NetBox's database. Do not utilize this field if you require encryption at rest for shared keys.
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