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[lvs-users] Unable to get a config going

To: lvs-users@xxxxxxxxxxxxxxxxxxxxxx
Subject: [lvs-users] Unable to get a config going
From: Rinaldo Digiorgio <digitalrinaldo@xxxxxxxxx>
Date: Tue, 26 Feb 2013 21:25:52 -0500
Hi,

        I think I have done what I can to try and get the following to work.

        All traffic on port 80 on the Director to be sent to two Real Servers.

        I have tried nat, ip tunneling and direct with no success.

        The Director server has ip forwarding on.


[root@lb300 lvs]# ./clvs 
IP Virtual Server version 1.2.1 (size=4096)
Prot LocalAddress:Port Scheduler Flags
  -> RemoteAddress:Port           Forward Weight ActiveConn InActConn
TCP  10.20.20.16:80 rr
  -> 10.20.20.14:80               Masq    1      0          0         
  -> 10.20.20.15:80               Masq    1      0          0         
--2013-02-27 01:51:18--  http://10.20.20.16/
Connecting to 10.20.20.16:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 86 [text/html]

        On the Director I can fetch a file from one of the real servers using 
the address 10.20.20.16

`       When I try it from another machine and access 10.20.20.16 externally I 
used tcpdump to observe that the Director gets the request and doesn't seem to 
forward it on.

02:24:17.373145 IP 10.20.20.17.49204 > 10.20.20.16.http: Flags [S], seq 
960611594, win 14600, options [mss 1460,sackOK,TS val 4089517587 ecr 
0,nop,wscale 7], length 0 02:24:17.373166 IP 10.20.20.17.49204 > 
10.20.20.15.http: Flags [S], seq 960611594, win 14600, options [mss 
1460,sackOK,TS val 4089517587 ecr 0,nop,wscale 7], length 0 02:24:18.372087 IP 
10.20.20.17.49204 > 10.20.20.16.http: Flags [S], seq 960611594, win 14600, 
options [mss 1460,sackOK,TS val 4089518587 ecr 0,nop,wscale 7], length 0 
02:24:18.372096 IP 10.20.20.17.49204 > 10.20.20.15.http: Flags [S], seq 
960611594, win 14600, options [mss 1460,sackOK,TS val 4089518587 ecr 
0,nop,wscale 7], length 0 02:24:20.372087 IP 10.20.20.17.49204 > 
10.20.20.16.http: Flags [S], seq 960611594, win 14600, options [mss 
1460,sackOK,TS val 4089520587 ecr 0,nop,wscale 7], length 0 02:24:20.372094 IP 
10.20.20.17.49204 > 10.20.20.15.http: Flags [S], seq 960611594, win 14600, 
options [mss 1460,sackOK,TS val 4089520587 ecr 0,nop,wscale 7
 ], length 0 02:24:24.372089 IP 10.20.20.17.49204 > 10.20.20.16.http: Flags 
[S], seq 960611594, win 14600, options [mss 1460,sackOK,TS val 4089524587 ecr 
0,nop,wscale 7], length 0 02:24:24.372096 IP 10.20.20.17.49204 > 
10.20.20.15.http: Flags [S], seq 960611594, win 14600, options [mss 
1460,sackOK,TS val 4089524587 ecr 0,nop,wscale 7], length 0

Rinaldo






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