Virtual Router Redundancy Protocol (vrrp)

headers Stephen Nadas | 7 Apr 2009 00:11

Hi Don, 

I'm trying, once again, to clean this up.   Been busy elsewhere... 

Mark H. pointed out: 

> Section 7.1:
> 
> - MAY verify that "Count IPvX Addrs" and the list of IPvX Address
>       matches the IPvX Address(es) configured for the VRID
> 
>    If the above check fails, the receiver SHOULD log the event and MAY
>    indicate via network management that a misconfiguration 
> was detected.
>    If the packet was not generated by the address owner (Priority does
>    not equal 255 (decimal)), the receiver MUST drop the packet,
>    otherwise continue processing.
> 
> This combination of MAY, SHOULD and MUST is confusing.  Also 
> it's not clear if the second "If" is conditional on the first 
> "If".  It seems like you may have a mandatory action that you 
> can't do unless you do an optional action.
> 

So I agree it's confusing.  The text (from rfc, and -v6 and from
combined) all say the same.  In particular the immediately prior text
isn't much better: 

      - MUST verify that the VRID is configured on the receiving
        interface and the local router is not the IPv6 Address owner

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May, should, must confusing section 7.1 vrrp

Is virtual mac a parameter?

question about the primary IP address

Re: question about the primary IP address

Re: question about the primary IP address