[quagga-users 14438] Re: Redundant Service IP on loopback

Oleg A. Arkhangelsky sysoleg at yandex.ru
Wed Sep 28 07:21:32 BST 2016



27.09.2016, 13:55, "sthaug at nethelp.no" <sthaug at nethelp.no>:
>>  >> My main goal here is services such as DNS and LDAP were the service is
>>  >> primarily used by other hosts/servers on the same subnet. I'm not sure
>>  >> if the original scheme (above) assumed that there was a router involved,
>>  >> but in this case there is no router.
>>  >>
>>  >> Any guidance would be sincerely appreciated.
>>  >
>>  > This is standard anycast, used on *lots* of DNS servers on the Internet
>>  > today. See for instance
>>  >
>>  > https://www.nanog.org/meetings/nanog29/presentations/miller.pdf
>>  >
>>  > Easy to configure, works great. No magic.
>>
>>  Also, not a good solution, if I'm reading the OP right. This seems like exactly the situation VRRP (HSRP) was invented for.
>
> Agreed, IP anycast is probably the wrong tool here.

What if servers are located in different subnets?

>
> Steinar Haug, Nethelp consulting, sthaug at nethelp.no
>
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-- 
wbr, Oleg.

"Anarchy is about taking complete responsibility for yourself."
      Alan Moore.



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