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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[lvs\-users\]\s+How\s+to\s+make\s+LVS\s+Direct\s+Route\s+work\s+for\s+UDP\s+programs\?\s*$/: 15 ]

Total 15 documents matching your query.

1. Re: [lvs-users] How to make LVS Direct Route work for UDP programs? (score: 1)
Author: wang yi <leonis.wang@xxxxxxxxx>
Date: Thu, 1 Dec 2011 14:45:16 +0800
Sure, I checked the "protocol = udp" option many, many times. For what I know now is that I tried to configure a udp-based program with Piranha for a lot of times, but it did not work, while at the s
/html/lvs-users/2011-12/msg00003.html (10,099 bytes)

2. Re: [lvs-users] How to make LVS Direct Route work for UDP programs? (score: 1)
Author: Graeme Fowler <graeme@xxxxxxxxxxx>
Date: Fri, 25 Nov 2011 16:06:32 +0000
I find that rather surprising, considering one of the documented use cases for Piranha is to load balance DNS requests! Did you specify "protocol = udp" in the configuration? Graeme _________________
/html/lvs-users/2011-11/msg00029.html (11,225 bytes)

3. Re: [lvs-users] How to make LVS Direct Route work for UDP programs? (score: 1)
Author: wang yi <leonis.wang@xxxxxxxxx>
Date: Fri, 25 Nov 2011 14:48:15 +0800
Hi, all It turned out that the UDP service configured with the nice-looking Piranha is not working! OMG!!! Simon's post inspired me, so I reconfigured UDP-based virtual service with ipvsadm in a cons
/html/lvs-users/2011-11/msg00028.html (12,138 bytes)

4. Re: [lvs-users] How to make LVS Direct Route work for UDP programs? (score: 1)
Author: Simon Horman <horms@xxxxxxxxxxxx>
Date: Thu, 24 Nov 2011 12:29:33 +0900
No, I don't think it is too old for the features you are using to work. _______________________________________________ Please read the documentation before posting - it's available at: http://www.li
/html/lvs-users/2011-11/msg00027.html (14,207 bytes)

5. Re: [lvs-users] How to make LVS Direct Route work for UDP programs? (score: 1)
Author: wang yi <leonis.wang@xxxxxxxxx>
Date: Thu, 24 Nov 2011 10:15:30 +0800
Hi, Simon Since you have mentioned kernel version here, I checked about that and I'm running 2.6.18-238.19.1.el5.centos.plus, is that a bit too old? Wang _____________________________________________
/html/lvs-users/2011-11/msg00026.html (13,420 bytes)

6. Re: [lvs-users] How to make LVS Direct Route work for UDP programs? (score: 1)
Author: wang yi <leonis.wang@xxxxxxxxx>
Date: Thu, 24 Nov 2011 09:08:52 +0800
Now I'm testing a trivial UDP-based program with LVS, just a few bytes in the packet. Wireshark on the director shows the size of UDP packet is 520 bytes, no overly large udp packet size message, and
/html/lvs-users/2011-11/msg00023.html (16,280 bytes)

7. Re: [lvs-users] How to make LVS Direct Route work for UDP programs? (score: 1)
Author: wang yi <leonis.wang@xxxxxxxxx>
Date: Thu, 24 Nov 2011 08:57:23 +0800
Nope. There's no iptables ruleset running there, and I think we do not need to do extra iptables work to let those packets through, right? I even disabled firewall and SELinux, but no luck. Wang ____
/html/lvs-users/2011-11/msg00022.html (11,717 bytes)

8. Re: [lvs-users] How to make LVS Direct Route work for UDP programs? (score: 1)
Author: Simon Horman <horms@xxxxxxxxxxxx>
Date: Thu, 24 Nov 2011 09:09:47 +0900
Hi Roger, if you are seeing that problem then I suggest turning off both GRO and LRO on the interface on the director that receives the packets. e.g. generic-receive-offload: on large-receive-offload
/html/lvs-users/2011-11/msg00021.html (11,535 bytes)

9. Re: [lvs-users] How to make LVS Direct Route work for UDP programs? (score: 1)
Author: Roger Littin <roger@xxxxxxxxxxxxx>
Date: Thu, 24 Nov 2011 11:16:10 +1300
Hi Wang, I have had similar problems where the director thinks the packet size is larger than mtu of the real server and sends back this message. Do you see anything in wireshark to indicate this. Ov
/html/lvs-users/2011-11/msg00020.html (13,849 bytes)

10. Re: [lvs-users] How to make LVS Direct Route work for UDP programs? (score: 1)
Author: Graeme Fowler <graeme@xxxxxxxxxxx>
Date: Wed, 23 Nov 2011 16:26:05 +0000
I assume you have an iptables ruleset running there. Is there a hole in it which lets those packets through? Graeme _______________________________________________ Please read the documentation befor
/html/lvs-users/2011-11/msg00019.html (9,556 bytes)

11. Re: [lvs-users] How to make LVS Direct Route work for UDP programs? (score: 1)
Author: wang yi <leonis.wang@xxxxxxxxx>
Date: Wed, 23 Nov 2011 22:45:58 +0800
Yes, I tried to make my application listen to real IP / virtual IP / INADDR_ANY, not working. But I think the problem isn't that. As I mentioned in the original post, the LVS router seemed not delive
/html/lvs-users/2011-11/msg00018.html (11,865 bytes)

12. Re: [lvs-users] How to make LVS Direct Route work for UDP programs? (score: 1)
Author: wang yi <leonis.wang@xxxxxxxxx>
Date: Wed, 23 Nov 2011 22:39:48 +0800
Sure, I've set up the UDP service. By the way, I'm using Piranha on CentOS 5 to manage the LVS configuration, maybe that's the problem? I'll try to manage LVS with other approaches. _________________
/html/lvs-users/2011-11/msg00017.html (10,902 bytes)

13. Re: [lvs-users] How to make LVS Direct Route work for UDP programs? (score: 1)
Author: Roger Littin <roger@xxxxxxxxxxxxx>
Date: Wed, 23 Nov 2011 23:30:22 +1300
Hi, I think you need to set your application on the real servers to listen to the udp port on all ip's or at least the real ip and then it needs to respond to the client on the vip. Roger. __________
/html/lvs-users/2011-11/msg00016.html (10,203 bytes)

14. Re: [lvs-users] How to make LVS Direct Route work for UDP programs? (score: 1)
Author: Simon Horman <horms@xxxxxxxxxxxx>
Date: Wed, 23 Nov 2011 19:23:55 +0900
Hi Wang, there shouldn't be anything particularly special about UDP. Do you have a UDP (-u) virtual service configured as well as the original TCP (-t) virtual service? ______________________________
/html/lvs-users/2011-11/msg00015.html (10,117 bytes)

15. [lvs-users] How to make LVS Direct Route work for UDP programs? (score: 1)
Author: wang yi <leonis.wang@xxxxxxxxx>
Date: Wed, 23 Nov 2011 17:06:34 +0800
Hi, all I've set up LVS with DR mode for Apache, it worked OK. Then I set up another Virtual Service for an UDP based program on the same boxes, but it won't work. Running Wireshark on the director s
/html/lvs-users/2011-11/msg00014.html (8,685 bytes)


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