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Hello all,
I set up an LVS for ftp via tunneling (scheduling: wlc). The LVS is
running, but there are some little problems:
if the clients put datas on the servers, all datas are going over the
director's interphase and are tunneld. I don't think that this is the
expected behaviour. Or am I wrong? I expect, that the datas go directly
to the appropriate realsrv.
The other problem is:
If I do ssh eg. to the virtual IP 10.48.1.77, I'm connected to one of
the realservers though I didn't configured this. Why?
Here is my configuration:
-> All boxes running kernel 2.2.19, same kernel-config
-> Kernel config:
<M> Packet socket
[*] Kernel/User netlink socket
[*] Routing messages
[*] Network firewalls
<*> Unix domain sockets
[*] TCP/IP networking
[*] IP: firewalling
[*] IP: masquerading
[*] IP: masquerading virtual server support (EXPERIMENTAL)
(12) IP masquerading VS table size (the Nth power of 2)
<M> IPVS: round-robin scheduling
<M> IPVS: weighted round-robin scheduling
<M> IPVS: least-connection scheduling
<M> IPVS: weighted least-connection scheduling
<M> IPVS: locality-based least-connection scheduling
<M> IPVS: locality-based least-connection with replication
scheduling
<M> IP: tunneling
[*] IP: aliasing support
[*] IP: Allow large windows (not recommended if <16Mb of memory)
The virtual IP-address for the ftp-service is 10.48.1.77 .
The addresses of the machines are as following:
Virtual server: 10.48.1.92
realserver 1: 10.48.1.109
realserver 2: 10.48.1.110
Configuration virtual server:
# ifconfig
eth0 Link encap:Ethernet HWaddr 00:04:AC:9B:62:1D
inet addr:10.48.1.92 Bcast:10.48.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:24541729 errors:0 dropped:0 overruns:0 frame:0
TX packets:25345728 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
Interrupt:15 Base address:0xc000
eth0:0 Link encap:Ethernet HWaddr 00:04:AC:9B:62:1D
inet addr:10.48.1.77 Bcast:10.48.1.77 Mask:255.255.255.255
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Interrupt:15 Base address:0xc000
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:3924 Metric:1
RX packets:1165248 errors:0 dropped:0 overruns:0 frame:0
TX packets:1165248 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
# route
Kernel IP routing table
Destination Gateway Genmask Flags
Metric Ref Use Iface
10.48.1.77 * 255.255.255.255 UH
0 0 0 eth0
10.48.1.0 * 255.255.255.0
U 0 0 0 eth0
loopback * 255.0.0.0
U 0 0 0 lo
default 10.48.1.10 0.0.0.0
UG 0 0 0 eth0
# ipvsadm -L
IP Virtual Server version 1.0.8 (size=4096)
Prot LocalAddress:Port Scheduler Flags
-> RemoteAddress:Port Forward Weight ActiveConn InActConn
TCP 10.48.1.77:ftp wlc persistent 600
-> 10.48.1.109:ftp Tunnel 1 70 606
-> 10.48.1.110:ftp Tunnel 1 61 685
# cat /proc/sys/net/ipv4/ip_forward
1
# lsmod
Module Size Used by
ip_vs_wlc 896 1 (autoclean)
af_packet 5708 0 (autoclean)
eepro100 16276 1 (autoclean)
The realservers have the following config:
# ifconfig
eth1 Link encap:Ethernet HWaddr 00:02:B3:3C:C7:39
inet addr:10.48.1.109 Bcast:10.48.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1018199 errors:0 dropped:0 overruns:0 frame:0
TX packets:993720 errors:0 dropped:0 overruns:1 carrier:0
collisions:0 txqueuelen:100
Interrupt:5 Base address:0x74c0 Memory:e029a000-e029ac40
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:3924 Metric:1
RX packets:925249 errors:0 dropped:0 overruns:0 frame:0
TX packets:925249 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
tunl0 Link encap:IPIP Tunnel HWaddr
inet addr:10.48.1.77 Mask:255.255.255.255
UP RUNNING NOARP MTU:1480 Metric:1
RX packets:394162 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
# route
Kernel IP routing table
Destination Gateway Genmask Flags
Metric Ref Use Iface
10.48.1.77 * 255.255.255.255 UH
0 0 0 tunl0
10.48.1.0 * 255.255.255.0
U 0 0 0 eth1
loopback * 255.0.0.0
U 0 0 0 lo
default 10.48.1.10 0.0.0.0
UG 0 0 0 eth1
# lsmod
Module Size Used by
af_packet 5708 0 (autoclean)
ipip 4892 1
e100 51236 1 (autoclean)
# cat /proc/sys/net/ipv4/conf/all/hidden
1
# cat /proc/sys/net/ipv4/conf/tunl0/hidden
1
Does anybody know, where the problem is? I had a testinstallation with
2.2.17 before this installation - and in test all has worked fine.
Regards and thank you very much for every help or tip,
Andreas Hartmann
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