Regarding vrrp and ping

[AshokJat]

Hi folks,

In which case we use interface ip as a virtual ip in vrrp..

And why we have always 4 packet of ping reply..

Thanks

Ashok

[Kasun Bandara]

Hi,

1. use new IP other than interface IPs in VRRP.

2. its de facto.

[AshokJat]

Hi kasun,

I know we can use other ip in vrrp but my question was that in which case we use interface ip in vrrp, 

[Kasun Bandara]

Hi, you can do that incase you cannot change the old configurations on client side (can be gateway already configured). in that case you can use same ip as vip.

[Georg Pauwen]

Hello,

as far as I recall, the virtual router master uses the physical IP address (thereby making it the address owner):

https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipapp_fhrp/configuration/15-sy/fhp-15-sy-book/fhp-vrrp.html#GUID-B7086877-B97F-47C9-BF33-90B4D098DBF5

As with regard to the first PING packet being 'lost', it actually is not lost, but rather 'lost' due to the timeout that occurs when the host ARPs for the MAC address.

I think the document linked below explains it pretty well:

https://www.pathsolutions.com/hubfs/PDF/PathSolutions-Why-Does-the-First-Ping-Usually-Fail.pdf