Neighbors

You configure the BGP neighbors of the device under Neighbors.

Entry active

Activates or deactivates the entry for this BGP neighbor.

Note: The activation of the BGP neighbor triggers the establishment of a BGP connection, if applicable.

Note: It is not possible to connect to disabled BGP neighbors.

Name

Contains the name of the BGP neighbor.

IP address

Specifies this BGP neighbor's IP address (IPv4 or IPv6) as used by the device to establish a BGP connection in the "active" or "delayed" connection mode. When using a link-local IPv6 address, it must be specified with % and the name of the logical interface, e.g. "fe80::1%INTRANET". Alternatively, you have the option to configure an entire IPv4 subnet, e.g. 192.168.1.0/24. In this case, the router accepts BGP connections from other routers on the subnet 192.168.1.0 with a subnet mask of 255.255.255.0. For this it is necessary to define the connection mode as "Passive". IPv6 subnets are not supported.

Note: This entry must match the IP address (e.g. physical interface address, loopback address) reported by this neighbor in an incoming connection.

Port

Shows the port on which the BGP neighbor expects inbound BGP messages and, correspondingly, the port used by the device for outbound connections of the connection type "active" or "delayed".

Note: The device accepts incoming connections from any source port used by the sender.

Source address (optional)

Contains the sender address (IPv4 or IPv6) that the device communicated to the BGP neighbor when connecting.

Note: Entry is optional and is only relevant for the connection modes "active" and "delayed".

Routing tag

Contains the routing tag. The device denies the connection if the routing tag does not match with the incoming connection.

Remote AS

Contains the AS number of the BGP neighbor.

Note: If the AS number of the BGP neighbor is identical to the AS number of the device's own BGP instance, then this neighbor is an iBGP peer (internal BGP) in its own AS.

Password

The device and the BGP neighbor authenticate themselves by exchanging this password in the form of an MD5 signature in the TCP packets.

Note: Authentication is not used if no password is set.

Connection mode

Sets the mode in which the connection is established from the device to this BGP neighbor. The following modes are available:

• Active: In this mode the device attempts to connect to the BGP neighbor as soon as, among other things, one of the following conditions is met:
  • The BGP neighbor is configured completely.
  • Using WEBconfig or via the CLI, you execute the action Manual start.
  • You start the device.
  • The BGP instance is enabled under Routing protocols > BGP > BGP instance.
  • You enable this BGP neighbor under Entry active.
  Note: If the active connection setup does not succeed, a new attempt is made after 120 seconds.
• Passive: In this mode the device does not actively connect to the BGP neighbor; instead, it waits for a connection request from the BGP neighbor.
• Delayed: In this mode the device waits for a timeout before it tries to connect to the BGP neighbor. The conditions for establishing a connection are the same as for the "Active" mode.

Connection delay

Specifies the wait time in seconds before the device in the "Delayed" connection mode establishes a connection to this BGP neighbor.

Route reflector client

Specifies whether this neighbor is treated as a route-reflector client, in which case the device reflects iBGP routes to it.

Note: This switch is valid only if

• The device has been configured as a route reflector in the BGP instance, i.e. it is a route reflector itself, and
• The remote AS number matches its own AS number (iBGP).

Neighbor profile

Contains the name of the BGP neighbor profile from Routing protocols > BGP > Neighbor profiles.

Note: If an entry is missing or incorrect, the BGP neighbor configuration is considered to be incomplete, and it is not possible to connect to it.

Inbound policy

Specifies the policy used by the device to filter the inbound connections from this BGP neighbor. The policy is configured under Routing protocols > BGP > BGP policy > Filters.

Note: If you leave this field empty, the device filters the inbound connections according to the default policy under Routing protocols > BGP > BGP policy > Standard.

Outbound policy

Specifies the policy used by the device to filter the outbound connections from this BGP neighbor. The policy is configured under Routing protocols > BGP > BGP policy > Filters.

Note: If you leave this field empty, the device filters the inbound connections according to the default policy under Routing protocols > BGP > BGP policy > Standard.

Comment

Contains a comment about this BGP neighbor.