[c-nsp] IPv6 subnets for point-to-point links

[Antonio Querubin]

On Fri, 13 May 2005, David Barak wrote:

> one other reason is for monitoring purposes - if you
> use an ICMP-based monitoring solution, it's better to
> ping the remote serial interface address than the
> customer's router ethernet...

It's better to ping a loopback address that is independent of any physical
interface.  You can monitor the physical interface directly via SNMP traps
or some syslog detector but neither requires the interface to be numbered.