Dell N1100-ON, Reference Manual

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Layer 3 Routing Commands
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administrator can use a special keyword “autodetect” to refer to the link local
IPv6 address of the neighbor. For example: “neighbor autodetect interface
0/21 remote-as 10000”
There are several restrictions to this feature:
1 The “interface” can only refer to non-multiple access VLAN routing
interfaces. It does not work on tunnels.
2 Only one “autodetect” neighbor can be configured per interface.
3 If autodetect neighbor is configured on an interface, a link-local IPv6
neighbor cannot be configured on the same interface.
4 If more than one link local IPv6 address is detected on the specified
interface, this is considered to be an error and the address auto-detection
fails.
5 The feature is supported only on platforms that also support the RFC
5549.
6 The feature is applicable only for directly connected neighbors.
7 Multiple access VLANs are not supported.
Command History
Introduced in version 6.3.0.1 firmware.
Example
console(config)# router bgp 65000
console(config-router)# neighbor 172.20.1.2 remote-as 65001
console(config-router)# neighbor 172.20.1.2 ebgp-multihop 3
console(config-router)# neighbor 2001::2 remote-as 65003
console(config-router)# neighbor 2001::2 ebgp-multihop 4
neighbor filter-list (BGP Router Configuration)
This command filters advertisements to or from a specific neighbor according
to the advertisement’s AS Path.
Syntax
neighbor { ip-address | ipv6-address [ interface interface-id ]} filter-list as-
path-list-number { in | out }