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Re: LVS-DR for Win2K real servers

To: <lvs-users@xxxxxxxxxxxxxxxxxxxxxx>
Subject: Re: LVS-DR for Win2K real servers
From: "Brett Simpson" <Simpsonb@xxxxxxxxxxxxxxxxxxxxxx>
Date: Mon, 10 Sep 2001 15:32:35 -0400
Never mind, I figured it out. According to the LVS docs for an NT system your 
suppose to use a class A netmask (255.0.0.0) for your loopback adapter. I 
changed it to 255.255.255.128 with my default gateway and it started working 
ok. Going to the RIP address didn't work either until I set the loopback 
correctly.

>>> Simpsonb@xxxxxxxxxxxxxxxxxxxxxx 09/10/01 01:58PM >>>
Hi,

This is my first time setting this up  I was able to get a single director up 
and running with IPVS 0.9.3. I know this isn't the stable version but I was 
eventually hoping to use the state updates with two directors later on as I 
learn more. So far I can connect to the two win2k real servers through a 
virtual IP on the director via LVS-dr when I'm in the same subnet (From Client 
C). This works great. But I can't connect to any of the other servers from 
another subnet (Clients A and B). Client A and B can get to both Real servers 
RIP. Does this sound like a routing issue? Maybe because my DMZ uses a 
255.255.255.128 subnet mask it causes an issue? Here's a diagram of my setup.

      ________                                                      ________
     |                |                                                         
                    |               |
     |   client A |-(207.156.7.254/255.255.255.240)                             
          | client B   |-(172.16.21.82/255.255.0.0)
     |________|                                             |________|
                 |                                                              
                    |
(Firewall/External NIC) (207.156.7.251/255.255.255.240)                 
(Firewall/Internal NIC) (172.16.21.103/255.255.0.0)
         |                                                                      
            |
         
------------------------------------------------------------------------------------------------------------
                                   |                       
                     (Firewall/DMZ NIC)(207.156.7.1/255.255.255.128)
                                   |
             ________      |
            |                |      |     VIP=207.156.7.43/255.255.255.128 
(eth0:0)
            | director   |-------     DIP=207.156.7.115/255.255.255.128 (eth0)
            |________|      |
                                   |                     _______
                                   |            |              |
                                   |--------------------| client  C 
|-(207.156.7.116/255.255.255.128)
                                   |            |_______|
                                   |
                     -----------------------------------------------------
                     |                                                    |     
          
                     |                                                    |     
       
RIP1=207.156.7.41/255.255.255.128   RIP2=207.156.7.42/255.255.255.128
VIP=207.156.7.43/255.0.0.0                 VIP=207.156.7.43/255.0.0.0           
     (loopback)
   __________                                            _________  
  |                   |                                            |            
      |   
  | realserver  |                                             | realserver |    
  |_________|                                             |_________|   
             
  


Brett Simpson
Internet Administrator for Hillsborough County
(813) 301-7144
simpsonb@xxxxxxxxxxxxxxxxxxxxxx 


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