Configuring IPv6 PIM Neighbor Filtering

You can configure an ACL and apply it to an interface to control neighbor access.

Configure ACL f10 to deny access to the device fe80::102.
```
device(config-ipv6-access-list f10)# deny ipv6 host fe80::102 any 
```
Note: In this case, fe80::102 is the link-local address of the interface.

Configure ACL f10 to permit access to all other devices.

device(config-ipv6-access-list f10)# permit ipv6 any any

Return to global configuration mode.

device(config-ipv6-access-list f10)# exit

Configure an Ethernet interface.
```
device(config)# interface ethernet 1/3/2
```
This command configures an interface and enters interface configuration mode.

Configure a filter that applies ACL f10 to the interface.
```
device(config-if-e1000-1/3/2)# ipv6 pim neighbor-filter f10
```
This command prevents the host that is specified in ACL f10, fe80::102, from becoming an IPv6 PIM neighbor on the interface.