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Hello,
I am new to LVS and am having some trouble getting it
setup and running.
I am attempting to do Tunneling with 2 real machines,
and 1 director (running inside of a uml).
Here is my setup and what I did in an attempt to get
lvs working.
On Director:
########################################################
Interfaces:
eth0 Link encap:Ethernet HWaddr
FE:FD:C0:A8:0A:6E
inet addr:192.168.10.110
Bcast:192.168.10.255 Mask:255.255.255.0
eth0:0 Link encap:Ethernet HWaddr
FE:FD:C0:A8:0A:6E
inet addr:192.168.10.111
Bcast:192.168.10.111 Mask:255.255.255.255
eth1 Link encap:Ethernet HWaddr
FE:FD:0A:01:02:02
inet addr:10.1.2.2 Bcast:10.255.255.255
Mask:255.255.255.0
eth2 Link encap:Ethernet HWaddr
FE:FD:0A:01:03:02
inet addr:10.1.3.2 Bcast:10.255.255.255
Mask:255.255.255.0
lo inet addr:127.0.0.1 Mask:255.0.0.0
----------------------------------------------------------------------------
The directors Real IP (RIP) is 192.168.10.110. I
want the VIP to be
192.168.10.111, which I setup using the following
command:
"ifconfig eth0:0 192.168.10.111 netmask
255.255.255.255 broadcast 192.168.10.111 up"
eth1 and eth2 are on private addresses (10.1.x.x) to
access my Real Servers.
I have 2 real servers that I want to use. I'll call
them N1 and N2 with the ip's
10.1.2.254 and 10.1.3.254.
So I setup lvs using the following:
ipvsadm -A -t 192.168.10.111:80
ipvsadm -a -t 192.168.10.111:80 -r 10.1.2.254:80 -i
ipvsadm -a -t 192.168.10.111:80 -r 10.1.3.254:80 -i
ipvsadm -L -n gives me the following:
----------------------------------------------
IP Virtual Server version 1.2.1 (size=4096)
Prot LocalAddress:Port Scheduler Flags
-> RemoteAddress:Port Forward Weight
ActiveConn InActConn
TCP 192.168.10.111:80 wlc
-> 10.1.3.254:80 Tunnel 1 0
0
-> 10.1.2.254:80 Tunnel 1 0
0
----------------------------------------------
So far so good. Next thing I did was setup the Real
servers.
On the Real Servers:
########################################################
Interfaces: N1 and N2
eth0 Link encap:Ethernet HWaddr
00:60:08:16:0C:0C
inet addr:10.1.(2,3).254
Bcast:10.255.255.255 Mask:255.0.0.0
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
tunl0 Link encap:IPIP Tunnel HWaddr
inet addr:192.168.10.111
Mask:255.255.255.255
UP RUNNING NOARP MTU:1480 Metric:1
RX packets:14 errors:0 dropped:0 overruns:0
frame:0
TX packets:0 errors:0 dropped:0 overruns:0
carrier:0
collisions:0 txqueuelen:0
RX bytes:780 (780.0 b) TX bytes:0 (0.0 b)
########################################################
to setup the real servers I did:
modprobe ipip
ifconfig tunl0 0.0.0.0 up
ifconfig tunl0 192.168.10.111 netmask 255.255.255.255
broadcast 192.168.10.111 up
then as I am using a 2.4.26 kernel, I used
arp_announce and arp_ignore to solve the arp
problem with the following commands:
echo '2' > /proc/sys/net/ipv4/conf/all/arp_announce
echo '2' > /proc/sys/net/ipv4/conf/tunl0/arp_announce
echo '1' > /proc/sys/net/ipv4/conf/all/arp_ignore
echo '1' > /proc/sys/net/ipv4/conf/tunl0/arp_ignore
Then finally, on the real server's I turned off apache
and ran netcat on port 80:
"nc -v -v -l -p 80"
Now, according to documentation, everything I have
done should work. However from an
external machine, (192.168.10.15), if I attempt to
connect to 192.168.10.111:80 (VIP),
my connection just hangs there and eventually times
out. Did I miss something in the configuration?
Or maybe I did something wrong? Any help would be
greatly appreciated.
Thanks in advance,
-R.D.
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