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Hi all, greets.
Please, we have a difficult problem, now I m loosed enough to continue.
We have this network with a cluster using LVS-NAT.
Doctor-------------------Gateway----------------Director
eth1 10.253.3.216(CIP) eth0 public IP eth0 public IP
eth2 public IP eth1 10.253.65.3 eth0:1 10.132.67.194
eth1:0 10.253.3.200 eth1 10.253.65.18(VIP)
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/----------------------|-----------------|----/
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RealServer1 RealServer2 Realserver3
eth0 10.253.65.7(RIP1) eth0 10.253.65.8(RIP2) eth0 10.253.65.9(RIP3)
On director:
# ipvsadm -nl
IP Virtual Server version 1.0.8 (size=4096)
Prot LocalAddress:Port Scheduler Flags
-> RemoteAddress:Port Forward Weight ActiveConn InActConn
TCP 10.253.65.18:80 wlc
-> 10.253.65.9:80 Masq 1 0 0
-> 10.253.65.8:80 Masq 1 0 0
-> 10.253.65.7:80 Masq 1 0 0
TCP public IP:80 wlc
-> 10.253.65.9:80 Masq 1 0 0
-> 10.253.65.8:80 Masq 1 0 0
-> 10.253.65.7:80 Masq 1 0 0
I had read the LVS howto, and if i try to make a request directly from
gateway to director, (all in the same network) i had to tunning it with
this:
# echo 0 > /proc/sys/net/ipv4/conf/all/send_redirects
# echo 0 > /proc/sys/net/ipv4/conf/default/send_redirects
# echo 0 > /proc/sys/net/ipv4/conf/eth0/send_redirects
and delete routes to gateway on the RealServers to obtain response and
of course: it works fine :)
But the problem is that a i had to make requests from a machine in a
different network, outside the gateway (doctor). Doctor is able to ping,
login through ssh... etc. into any machine into the cluster, included
director through its VIP. But if i try to make requests from this
machine, I can see, by using tcpdump, request coming to the realservers,
but its unable to obtain response... :( any
# telnet 10.253.65.18 80
has no response :((
I had try applying the solution for CIP,VIP,RIPs in the same network,
and without it (of course, removing and adding the routes into the
realservers), but it wasnt able to works for me :((
Any help, howtos, url.. its welcome !!
Thanks a lot in advance.
--
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Carlos J. Ramos Genasys II Spain, S.A.U.
Administrador de Sistemas Ventura de la Vega 5
Tel:+34-91-3649100 ext 170 28014 Madrid
Fax:+34-91-3649119
Spain
Email: cjramos@xxxxxxxxxx
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