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1. Re: [lvs-users] netmask for vip? (score: 1): Author: linbo liao <llbgurs@xxxxxxxxx>; Date: Mon, 26 Jun 2017 21:41:47 +0800; Thanks Julian. 2017-06-25 1:30 GMT+08:00 Julian Anastasov <ja@xxxxxx>: _______________________________________________ Please read the documentation before posting - it's available at: http://www.lin; /html/lvs-users/2017-06/msg00017.html (11,559 bytes)
2. Re: [lvs-users] netmask for vip? (score: 1): Author: Julian Anastasov <ja@xxxxxx>; Date: Sat, 24 Jun 2017 20:30:43 +0300 (EEST); Hello, Yes - if we add VIP/24 on eth0. Not - if VIP is added as /32. Nobody should need such games in IPVS setups... I just wanted to note all considerations when deciding where to add VIP. If VIP be; /html/lvs-users/2017-06/msg00016.html (11,002 bytes)
3. Re: [lvs-users] netmask for vip? (score: 1): Author: linbo liao <llbgurs@xxxxxxxxx>; Date: Sat, 24 Jun 2017 21:19:29 +0800; Thanks Julian. I search the net, all VIP will be removed if primary IP deleted when promote_secondaries is 0. Why VIP should not be promoted as primary IP if DIP removed? I try to search in google, b; /html/lvs-users/2017-06/msg00015.html (12,476 bytes)
4. Re: [lvs-users] netmask for vip? (score: 1): Author: Julian Anastasov <ja@xxxxxx>; Date: Thu, 22 Jun 2017 23:25:39 +0300 (EEST); Hello, Not sure about the keepalived specifics but in Linux there is no big difference where you configure the VIPs on director. The only rules that apply are: - you should have DIP (Director IP) whi; /html/lvs-users/2017-06/msg00014.html (11,563 bytes)
5. Re: [lvs-users] netmask for vip? (score: 1): Author: Andrew Smalley <asmalley@xxxxxxxxxxxxxxxx>; Date: Thu, 22 Jun 2017 13:27:29 +0100; Hello Linbo You will want to configure keepalived in the subnet that your VIP should be assigned. also you will want to configure it for the interface it should be brought up on too. Example : I have; /html/lvs-users/2017-06/msg00013.html (13,059 bytes)
6. Re: [lvs-users] netmask for vip? (score: 1): Author: linbo liao <llbgurs@xxxxxxxxx>; Date: Thu, 22 Jun 2017 20:01:08 +0800; Thanks Julian, I understand /32 for "lo" interface. But my question is VIP for director, it usually configure in other interface than "lo" , what's the difference between /32 and actual subnet of the; /html/lvs-users/2017-06/msg00012.html (11,964 bytes)
7. Re: [lvs-users] netmask for vip? (score: 1): Author: Julian Anastasov <ja@xxxxxx>; Date: Thu, 22 Jun 2017 00:10:46 +0300 (EEST); Hello, The "lo" interface is special in Linux, if you add IP/24 on lo, what is added actually is a range of local addresses, i.e. 256 local addresses in the case for /24. As result, for the 127.0.0.1; /html/lvs-users/2017-06/msg00011.html (10,373 bytes)
8. Re: [lvs-users] netmask for vip? (score: 1): Author: Aaron West <aaron@xxxxxxxxxxxxxxxx>; Date: Wed, 21 Jun 2017 16:26:52 +0100; Linbo, Yes, it's different as you do want the director to respond to ARP requests and that's the only reason it's suggested to use /32 and a loopback adapter on the real server. So to clarify the VIP; /html/lvs-users/2017-06/msg00010.html (36,159 bytes)
9. Re: [lvs-users] netmask for vip? (score: 1): Author: linbo liao <llbgurs@xxxxxxxxx>; Date: Wed, 21 Jun 2017 23:22:05 +0800; Yes Aaron, for loopback it must be /32. But the two link told vip in director is also /32, which confused me, I guess vip in director can't configure in loopback interface, right? Thanks, Linbo 2017-; /html/lvs-users/2017-06/msg00009.html (32,140 bytes)
10. Re: [lvs-users] netmask for vip? (score: 1): Author: Aaron West <aaron@xxxxxxxxxxxxxxxx>; Date: Wed, 21 Jun 2017 16:13:49 +0100; Linbo, I assume you mean on the loopback adapter? If so then use a 255.255.255.255 So use a /32 for safety unless you can't for some reason as this helps to guarantee the real server will not respond; /html/lvs-users/2017-06/msg00008.html (29,449 bytes)
11. Re: [lvs-users] netmask for vip? (score: 1): Author: linbo liao <llbgurs@xxxxxxxxx>; Date: Wed, 21 Jun 2017 23:07:21 +0800; I have no idea. Refer to http://www.austintek.com/LVS/LVS-HOWTO/HOWTO/LVS-HOWTO.ipvsadm.html#netmask_for_VIP - For LVS-DR, LVS-Tun: netmask for VIP on director, realservers must be /32. and Julian re; /html/lvs-users/2017-06/msg00007.html (25,187 bytes)
12. Re: [lvs-users] netmask for vip? (score: 1): Author: Aaron West <aaron@xxxxxxxxxxxxxxxx>; Date: Wed, 21 Jun 2017 15:31:01 +0100; Linbo, Sorry, if you mean directly on the interface of the director so when you check the output of "ip a" then I'd use the netmask of the network, I thought you meant the netmask setting for LVS its; /html/lvs-users/2017-06/msg00006.html (21,798 bytes)
13. Re: [lvs-users] netmask for vip? (score: 1): Author: linbo liao <llbgurs@xxxxxxxxx>; Date: Wed, 21 Jun 2017 22:20:52 +0800; I am not sure. If I configure vip netmask, and use `ip a` it will print vip with netmask information. But `-M netmask` is show in `ipvsadm -Ln`. I think there are different thing. Thanks, Linbo 2017-; /html/lvs-users/2017-06/msg00005.html (18,790 bytes)
14. Re: [lvs-users] netmask for vip? (score: 1): Author: Aaron West <aaron@xxxxxxxxxxxxxxxx>; Date: Wed, 21 Jun 2017 15:01:05 +0100; Linbo, Yes, I believe it will be exactly the same, sorry for referencing Ldirectord it's just what I'm used to using. Did a quick google to verify my thoughts and this page backs me up as well as bei; /html/lvs-users/2017-06/msg00004.html (17,070 bytes)
15. Re: [lvs-users] netmask for vip? (score: 1): Author: linbo liao <llbgurs@xxxxxxxxx>; Date: Wed, 21 Jun 2017 21:37:36 +0800; Sorry I miss the detailed information. I mean the netmask of VIP in LVS director. LVS use keepalived to do HA. Will vip netmask in LVS director affect the persistence ? 2017-06-18 16:30 GMT+08:00 Aar; /html/lvs-users/2017-06/msg00003.html (13,166 bytes)
16. Re: [lvs-users] netmask for vip? (score: 1): Author: Aaron West <aaron@xxxxxxxxxxxxxxxx>; Date: Sun, 18 Jun 2017 09:30:22 +0100; 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, thi; /html/lvs-users/2017-06/msg00002.html (11,628 bytes)
17. [lvs-users] netmask for vip? (score: 1): Author: linbo liao <llbgurs@xxxxxxxxx>; Date: Sun, 18 Jun 2017 08:16:32 +0800; 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 pr; /html/lvs-users/2017-06/msg00001.html (8,403 bytes)

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