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Hello all
I'm attempting to get LVS installed and working and I'm having some
trouble. I've been doing allot of reading and I'm not able to find a
solution to my problem on my own. I was hoping that someone on here may be
able to shed some light on the subject and possibly point out what I'm doing
wrong.
I want to apologize in advanced for the length of this message.
I have ipvsadm installed and the ip_vs modules are loaded. I'm using
rhel3as.
I'm doing the following
The server running lvs with eth0 being its rip and the vip is bound to
eth0:0.
logbash-2.03# ifconfig
eth0 Link encap:Ethernet HWaddr 00:13:21:B3:65:6A
inet addr:10.26.66.97 Bcast:10.26.67.255 Mask:255.255.254.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:10959 errors:0 dropped:0 overruns:0 frame:0
TX packets:3166 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:3310081 (3.1 Mb) TX bytes:1230650 (1.1 Mb)
Interrupt:25
eth0:0 Link encap:Ethernet HWaddr 00:13:21:B3:65:6A
inet addr:10.26.66.101 Bcast:10.26.66.101 Mask:255.255.255.255
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Interrupt:25
ipvsadm -A -t lvs-vip:23 -s wlc
ipvsadm -a -t lvs-vip:23 -r test-rs -g
echo 1 > /proc/sys/net/ipv4/ip_forward
route add -host 10.26.66.101 dev eth0:0
On the box I'm calling test-rs, I'm doing the following
ifconfig lo:0 lvs-vip netmask 255.255.255.255 broadcast lvs-vip up
echo 1 >/proc/sys/net/ipv4/ip_forward
route add -host lvs-vip dev lo:0
On the test-rs box, my ifconfig is this:
bomer.desktop$ ifconfig
eth0 Link encap:Ethernet HWaddr 00:12:3F:66:98:A5
inet addr:10.26.94.121 Bcast:10.26.95.255 Mask:255.255.252.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:35 errors:0 dropped:0 overruns:0 frame:0
TX packets:49 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:6815 (6.6 Kb) TX bytes:6271 (6.1 Kb)
Interrupt:11
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:119045 errors:0 dropped:0 overruns:0 frame:0
TX packets:119045 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:7982890 (7.6 Mb) TX bytes:7982890 (7.6 Mb)
lo:0 Link encap:Local Loopback
inet addr:10.26.66.101 Mask:255.255.255.255
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:15 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:900 (900.0 b) TX bytes:0 (0.0 b)
To troubleshoot this, I'm running 'tcpdump -ln port 23' on the lvs server
and the test-rs machine. On the lvs server, I get the following when I try
to telnet to the vip from a 3 machine
21:14:04.278916 10.26.66.66.29427 > 10.26.66.101.telnet: S
2084871663:2084871663(0) win 5840 <mss 1460,sackOK,timestamp 101529036
0,nop,wscale 0> (DF) [tos 0x10]
21:14:04.278929 10.26.66.66.29427 > 10.26.66.101.telnet: S
2084871663:2084871663(0) win 5840 <mss 1460,sackOK,timestamp 101529036
0,nop,wscale 0> (DF) [tos 0x10]
21:14:04.278974 10.26.66.66.29427 > 10.26.66.101.telnet: S
2084871663:2084871663(0) win 5840 <mss 1460,sackOK,timestamp 101529036
0,nop,wscale 0> (DF) [tos 0x10] [ttl 1]
21:14:04.278980 10.26.66.66.29427 > 10.26.66.101.telnet: S
2084871663:2084871663(0) win 5840 <mss 1460,sackOK,timestamp 101529036
0,nop,wscale 0> (DF) [tos 0x10] [ttl 1]
I dont see anything at all from the test-rs machine's tcpdump output. And
from the client, I get
nfs-101$ telnet lvs-vip
Trying 10.26.66.101...
telnet: connect to address 10.26.66.101: No route to host
telnet: Unable to connect to remote host: No route to host
Here is a list of the modules I inserted:
logbash-2.03# lsmod | grep ip
ip_vs_wlc 1284 1
ip_vs 68192 2 [ip_vs_wlc]
ipip 9540 0 (unused)
ipt_LOG 4344 2 (autoclean)
iptable_filter 2444 1 (autoclean)
ipt_MARK 1400 1 (autoclean)
iptable_mangle 2776 1 (autoclean)
ip_tables 16544 4 [ipt_LOG iptable_filter ipt_MARK
iptable_mangle]
I'd be greatly appreciative to anyone who is able to offer any insight to my
problem.
Regards,
Bill Omer
bill.omer@xxxxxxxxx
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