|
Hi, I have a question about Linux Director.
- "ping" is O.K !! (Linux Director (LD) --> Real Servers (RS) / RS --> LD)
- request packet NAT is O.K !! (client --> LD --> RS ; destination address
is changed in th LD)
- but the problem is "response NAT (demasq.)" !! ( client <-- LD <-- RS ;
response packet is NOT changed !!)
Mmm, My isolated network and experimental environment is following.. help me,
now.
======================================================================
client (203.248.108.7)
| (P2-300/ Windows 98)
|
|
Linux Director (eth0: 203.248.108.11 / eth1: 192.168.1.1)
B O X (P2-400/ Linux 2.2.9/ VS-0.4)
|
|
H U B (16 ports)
| |
+---------+ +-----------------+
| |
| |
Real Server1 Real Server2
(192.168.1.4) (192.168.1.2)
(P2-300/ Linux 2.0.36) (SPARC4/ SunOS 5.5.1)
============================================================
Linux Director Status is ...
# ipvsadm -L (Linux Director)
--------------------------------------------------------------------------------------------------------------
IP Virtual Server (Version 0.4)
TCP 203.248.108.11:80 wlc
-> 192.168.1.4:80 Masq 1 0+0
-> 192.168.1.2:80 Masq 1 0+0
# ipconfig -a (Linux Director)
--------------------------------------------------------------------------------------------------------------
eth0 Link encap:Ethernet HWaddr 00:10:4B:8E:7E:92
inet addr:203.248.108.11 Bcast:203.248.108.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:17712 errors:6 dropped:0 overruns:0 frame:7
TX packets:1731 errors:0 dropped:0 overruns:0 carrier:45
collisions:2 txqueuelen:100
Interrupt:11 Base address:0xec80
eth1 Link encap:Ethernet HWaddr 00:10:5A:6D:97:FB
inet addr:192.168.1.1 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1523 errors:0 dropped:0 overruns:0 frame:0
TX packets:846 errors:0 dropped:0 overruns:0 carrier:12
collisions:1 txqueuelen:100
Interrupt:10 Base address:0xec00
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:99 errors:0 dropped:0 overruns:0 frame:0
TX packets:99 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
# netstat -rn (Linux Director)
--------------------------------------------------------------------------------------------------------------
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window
irtt Iface
192.168.1.1 0.0.0.0 255.255.255.255 UH 0 0
0 eth1
203.248.108.11 0.0.0.0 255.255.255.255 UH 0 0 0
eth0
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0
0 eth1
203.248.108.0 0.0.0.0 255.255.255.0 U 0 0
0 eth0
127.0.0.0 0.0.0.0 255.0.0.0 U 0 0
0 lo
============================================================
Real Servers network status is...
--------------------------------------------------------------------------------------------------------------
# ifconfig -a (Real Server 1)
--------------------------------------------------------------------------------------------------------------
lo Link encap:Local Loopback
inet addr:127.0.0.1 Bcast:127.255.255.255 Mask:255.0.0.0
UP BROADCAST LOOPBACK RUNNING MTU:3584 Metric:1
RX packets:98 errors:0 dropped:0 overruns:0 frame:0
TX packets:98 errors:0 dropped:0 overruns:0 carrier:0
collisions:0
eth0 Link encap:Ethernet HWaddr 00:60:97:8F:C9:DE
inet addr:192.168.1.4 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:521 errors:0 dropped:0 overruns:0 frame:0
TX packets:1100 errors:0 dropped:0 overruns:0 carrier:0
collisions:1
Interrupt:5 Base address:0x300
# netstat -rn (Real Server 1)
--------------------------------------------------------------------------------------------------------------
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt
Iface
192.168.1.0 0.0.0.0 255.255.255.0 U 1500 0 0
eth0
127.0.0.0 0.0.0.0 255.0.0.0 U 3584 0
0 lo
0.0.0.0 192.168.1.1 0.0.0.0 UG 1500 0
0 eth0
==============================================================
# ifconfig -a (Real Server 2)
--------------------------------------------------------------------------------------------------------------
lo0: flags=849<UP,LOOPBACK,RUNNING,MULTICAST> mtu 8232
inet 127.0.0.1 netmask ff000000
le0: flags=863<UP,BROADCAST,NOTRAILERS,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.2 netmask ffffff00 broadcast 192.168.1.255
ether 8:0:20:82:23:21
# netstat -rn (Real Server 2)
--------------------------------------------------------------------------------------------------------------
Routing Table:
Destination Gateway Flags Ref Use Interface
-------------------- -------------------- ----- ----- ------
---------
127.0.0.1 127.0.0.1 UH 0 0 lo0
192.168.1.0 192.168.1.2 U 3 7 le0
224.0.0.0 192.168.1.2 U 3 0 le0
default 192.168.1.1 UG 0 72
===========================================================
Thank you.
p.s. This mail is attached text format(MyVS.txt), also.
+-----------------------------------------------------------------------------------------------------------------+
| Daeho Kim
|
| job : full time student (BIT education center /Nerwork expert class(NX102))
|
| address: 391-269 ,Daebang-dong ,Dongjak-goo, Seoul, Korea(ROK)
|
| zipcode: 156-020
|
| Celluler Phone : +82-011-343-1673
|
| e-mail : mrds@xxxxxxxxxxxx
|
+---------------------------------------------------------------------------+
Daeho's profile ver. 1.0.0 +
Hi, I have a question about Linux Director.
- "ping" is O.K !! (Linux Director (LD) --> Real Servers (RS) / RS --> LD)
- request packet NAT is O.K !! (client --> LD --> RS ; destination address
is changed in th LD)
- but the problem is "response NAT (demasq.)" !! ( client <-- LD <-- RS ;
response packet is NOT changed !!)
Mmm, My isolated network and experimental environment is following.. help me,
now.
============================================================================================
client (203.248.108.7)
| (P2-300/ Windows 98)
|
|
Linux Director (eth0: 203.248.108.11 / eth1: 192.168.1.1)
B O X (P2-400/ Linux 2.2.9/ VS-0.4)
|
|
H U B (16 ports)
| |
+----------+ +-----------------+
| |
| |
Real Server1 Real Server2
(192.168.1.4) (192.168.1.2)
(P2-300/ Linux 2.0.36) (SPARC4/ SunOS 5.5.1)
Linux Director Status is ...
# ipvsadm -L (Linux Director)
--------------------------------------------------------------------------------
IP Virtual Server (Version 0.4)
TCP 203.248.108.11:80 wlc
-> 192.168.1.4:80 Masq 1 0+0
-> 192.168.1.2:80 Masq 1 0+0
# ipconfig -a (Linux Director)
--------------------------------------------------------------------------------
eth0 Link encap:Ethernet HWaddr 00:10:4B:8E:7E:92
inet addr:203.248.108.11 Bcast:203.248.108.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:17712 errors:6 dropped:0 overruns:0 frame:7
TX packets:1731 errors:0 dropped:0 overruns:0 carrier:45
collisions:2 txqueuelen:100
Interrupt:11 Base address:0xec80
eth1 Link encap:Ethernet HWaddr 00:10:5A:6D:97:FB
inet addr:192.168.1.1 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1523 errors:0 dropped:0 overruns:0 frame:0
TX packets:846 errors:0 dropped:0 overruns:0 carrier:12
collisions:1 txqueuelen:100
Interrupt:10 Base address:0xec00
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:99 errors:0 dropped:0 overruns:0 frame:0
TX packets:99 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
# netstat -rn (Linux Director)
------------------------------------------------------------------------------
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt Iface
192.168.1.1 0.0.0.0 255.255.255.255 UH 0 0 0 eth1
203.248.108.11 0.0.0.0 255.255.255.255 UH 0 0 0 eth0
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1
203.248.108.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo
============================================================================================
Real Server 1 network status is...
---------------------------------------------------------------------------
# ifconfig -a (Real Server 1)
---------------------------------------------------------------------------
lo Link encap:Local Loopback
inet addr:127.0.0.1 Bcast:127.255.255.255 Mask:255.0.0.0
UP BROADCAST LOOPBACK RUNNING MTU:3584 Metric:1
RX packets:98 errors:0 dropped:0 overruns:0 frame:0
TX packets:98 errors:0 dropped:0 overruns:0 carrier:0
collisions:0
eth0 Link encap:Ethernet HWaddr 00:60:97:8F:C9:DE
inet addr:192.168.1.4 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:521 errors:0 dropped:0 overruns:0 frame:0
TX packets:1100 errors:0 dropped:0 overruns:0 carrier:0
collisions:1
Interrupt:5 Base address:0x300
# netstat -rn (Real Server 1)
----------------------------------------------------------------------------
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt Iface
192.168.1.0 0.0.0.0 255.255.255.0 U 1500 0 0 eth0
127.0.0.0 0.0.0.0 255.0.0.0 U 3584 0 0 lo
0.0.0.0 192.168.1.1 0.0.0.0 UG 1500 0 0 eth0
===========================================================================================
# ifconfig -a (Real Server 2)
----------------------------------------------------------------------------
lo0: flags=849<UP,LOOPBACK,RUNNING,MULTICAST> mtu 8232
inet 127.0.0.1 netmask ff000000
le0: flags=863<UP,BROADCAST,NOTRAILERS,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.2 netmask ffffff00 broadcast 192.168.1.255
ether 8:0:20:82:23:21
# netstat -rn (Real Server 2)
-----------------------------------------------------------------------------
Routing Table:
Destination Gateway Flags Ref Use Interface
-------------- ------------- ----- ----- ---- ---------
127.0.0.1 127.0.0.1 UH 0 0 lo0
192.168.1.0 192.168.1.2 U 3 7 le0
224.0.0.0 192.168.1.2 U 3 0 le0
default 192.168.1.1 UG 0 72
====================================================================================================
Thank you.
p.s. This mail is attached text format(MyVS.txt), also.
+-------------------------------------------------------------
----------------------+
| Daeho Kim
|
| job : full time student (BIT education center /Nerwork expert class(NX102))
|
| address: 391-269 ,Daebang-dong ,Dongjak-goo, Seoul, Korea(ROK)
|
| zipcode: 156-020
|
| Celluler Phone : +82-011-343-1673
|
| e-mail : mrds@xxxxxxxxxxxx
|
+-------------------------------------------------------+ Daeho's profile ver.
1.0.0 +
|
