I've never used that method before, I would think you would need to be careful with your rp_filter settings?
The ones I know that do work with the DR mode LVS arp problem are: http://pdfs.loadbalancer.org/quickstartguideLBVMv7.pdf Page 30: loopback + arp_ignore sysctl values or forget the loopback and use just Page 29: iptables method On 24 March 2014 20:57, Tiago <syt...@gmail.com> wrote: > Hi Malcom, > > Answering: >>Is the apache server responding to BOTH the RIP & the VIP? (RIP for >>health checks, VIP for load balanced traffic) > > root@web1:/var/log/apache2# netstat -ntlpd | grep :80 > tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN > 10159/apache2 > > >>And how have you solved the ARP problem for the loopback adapter? > > As we have completely separate vlans, the traffic which comes to VIP > doesn't reach RIP network segment. So, per some instructions I didn't take > any measure on it, I hope that approach is correct. > > Basically I have: > LVS server: > > eth1 (vlan 2054) with public IPs > eth0 (vlan 1296) with private IPs > > So I have VIP on top of eth1. > And I have an 10.56.213.6 on top of eth0. > > Real servers: > eth1 (vlan 2054) with public IPs > eth0 (vlan 1296) with private IPs > > So I have VIP on lo:0 > And I have 10.56.213.20 on top of eth0 on realserver 1 and I have > 10.56.213.21 on top of eth0 on realserver 2. > > Thanks > > > > > 2014-03-24 17:40 GMT-03:00 Malcolm Turnbull <malc...@loadbalancer.org>: > >> Tiago, >> >> Is the apache server responding to BOTH the RIP & the VIP? (RIP for >> health checks, VIP for load balanced traffic) >> And how have you solved the ARP problem for the loopback adapter? >> >> >> >> On 24 March 2014 20:00, Tiago <syt...@gmail.com> wrote: >> > Hello all, >> > >> > I'm trying to setup an LVS-DR here for a couple of webservers. My >> scenario >> > is: >> > >> > Eth1 and eth0 are in separated vlans. >> > >> > 1. My realservers ips: 10.56.213.31-10.56.213.32 at eth0 >> > 2. >> > 3. myrealip** at eth1 (its a public IP) >> > 4. >> > 5. >> > 6. root@lvs1:~# ipvsadm >> > 7. IP Virtual Server version 1.2.1 (size=4096) >> > 8. Prot LocalAddress:Port Scheduler Flags >> > 9. -> RemoteAddress:Port Forward Weight ActiveConn >> InActConn >> > 10. TCP myrealip**:http wlc >> > 11. -> 10.56.213.31:http Route 1 0 0 >> > 12. -> 10.56.213.32:http Route 1 0 0 >> > 13. >> > 14. On realservers: >> > 15. lo:0 Link encap:Local Loopback >> > 16. inet addr:myrealip** Mask:255.255.255.255 >> > 17. UP LOOPBACK RUNNING MTU:16436 Metric:1 >> > 18. >> > 19. route -n: >> > 20. myrealip** 0.0.0.0 255.255.255.255 UH 0 0 >> 0 >> > lo >> > 21. >> > 22. >> > 23. When someone try to access myrealip**:80 I have: >> > 24. -> 10.56.213.31:http Route 1 0 1 >> > 25. -> 10.56.213.32:http Route 1 0 0 >> > 26. >> > 27. And on realserver 10.56.213.31: >> > 28. >> > 29. root@web1:/var/log/apache2# tcpdump -ni eth0 host 216.5.78.123 >> (my >> > source ip) >> > 30. tcpdump: WARNING: eth0: no IPv4 address assigned >> > 31. tcpdump: verbose output suppressed, use -v or -vv for full >> protocol >> > decode >> > 32. listening on eth0, link-type EN10MB (Ethernet), capture size 65535 >> > bytes >> > 33. 13:40:35.267880 IP 216.5.78.123.37026 > myrealip**.80: Flags [S], >> > seq 2186878409, win 14600, options [mss 1460,sackOK,TS val 164050646 >> ecr >> > 0,nop,wscale 7], length 0 >> > 34. 13:40:36.270371 IP 216.5.78.123.37026 > myrealip**.80: Flags [S], >> > seq 2186878409, win 14600, options [mss 1460,sackOK,TS val 164051646 >> ecr >> > 0,nop,wscale 7], length 0 >> > 35. 13:40:38.276806 IP 216.5.78.123.37026 > myrealip**.80: Flags [S], >> > seq 2186878409, win 14600, options [mss 1460,sackOK,TS val 164053646 >> ecr >> > 0,nop,wscale 7], length 0 >> > 36. 13:40:42.294667 IP 216.5.78.123.37026 > myrealip**.80: Flags [S], >> > seq 2186878409, win 14600, options [mss 1460,sackOK,TS val 164057646 >> ecr >> > 0,nop,wscale 7], length 0 >> > 37. 13:40:50.328756 IP 216.5.78.123.37026 > myrealip**.80: Flags [S], >> > seq 2186878409, win 14600, options [mss 1460,sackOK,TS val 164065646 >> ecr >> > 0,nop,wscale 7], length 0 >> > 38. >> > 39. But I can't see the answer going back to me in any interface I >> have >> > at these realservers. I don't get any HTTP HIT at apache either. >> > >> > Obviously it seems I'm missing something here, however, I can't see >> clearly >> > what is it. >> > >> > Can you help on this? >> > >> > Thanks in advance! >> > _______________________________________________ >> > Please read the documentation before posting - it's available at: >> > http://www.linuxvirtualserver.org/ >> > >> > LinuxVirtualServer.org mailing list - lvs-users@LinuxVirtualServer.org >> > Send requests to lvs-users-requ...@linuxvirtualserver.org >> > or go to http://lists.graemef.net/mailman/listinfo/lvs-users >> >> >> >> -- >> Regards, >> >> Malcolm Turnbull. >> >> Loadbalancer.org Ltd. >> Phone: +44 (0)870 443 8779 >> http://www.loadbalancer.org/ >> >> _______________________________________________ >> Please read the documentation before posting - it's available at: >> http://www.linuxvirtualserver.org/ >> >> LinuxVirtualServer.org mailing list - lvs-users@LinuxVirtualServer.org >> Send requests to lvs-users-requ...@linuxvirtualserver.org >> or go to http://lists.graemef.net/mailman/listinfo/lvs-users >> > _______________________________________________ > Please read the documentation before posting - it's available at: > http://www.linuxvirtualserver.org/ > > LinuxVirtualServer.org mailing list - lvs-users@LinuxVirtualServer.org > Send requests to lvs-users-requ...@linuxvirtualserver.org > or go to http://lists.graemef.net/mailman/listinfo/lvs-users -- Regards, Malcolm Turnbull. Loadbalancer.org Ltd. Phone: +44 (0)870 443 8779 http://www.loadbalancer.org/ _______________________________________________ Please read the documentation before posting - it's available at: http://www.linuxvirtualserver.org/ LinuxVirtualServer.org mailing list - lvs-users@LinuxVirtualServer.org Send requests to lvs-users-requ...@linuxvirtualserver.org or go to http://lists.graemef.net/mailman/listinfo/lvs-users
