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Hi Linbo,
I assume you mean on the loopback adapter? If so then use a 255.255.255.255
or /32 for safety, not all OS's may need it as there can be many ways to
make it not respond to ARP, however, this also helps as you are telling the
OS it's a single address.
Or do you mean the "netmask" in the ldirectord config which affects
persistence? When this is at the default of 255.255.255.255 persistence
will work per source address so 192.168.0.10 and 192.168.0.11 would get
stuck to different servers. If you set 255.255.255.0 then they would both
hit the same server as persistence would work by subnet so the whole
192.168.0.0/24 subnet would be stuck to the first server.
Hope that's relevant to your question and makes sense...
Aaron West
Loadbalancer.org
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On 18 June 2017 at 01:16, linbo liao <llbgurs@xxxxxxxxx> wrote:
> If vip 192.168.0.111 from subnet 192.168.0.0/24, and no netmask support in
> configuration, the default netmask is 255.255.255.255. I test default
> netmask, looks everything works fine.
>
> So what's the proper netmask for vip, 255.255.255.255 or 255.255.255.0?
>
> Thanks,
> Linbo
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