Received OP_SessionRequest in ESTABLISHED state

kai4785 · #1 05-09-2010, 06:06 PM

I would say my network configuration is fairly non-standard. My Router is a junker (with a Intel(R) Core(TM)2 Duo CPU E7400 @ 2.80GHz processor) desktop running CentOS. I have iptables doing firewall/nat, squid/dansguardian (with an iptables redirect) doing internet filtering, and openVPN on a bridged device to allow layer2 access to my home network from VPN clients (just my laptop and workstation at the office).

br0 is the virtual bridge, and you'll see that eth0 (physical built-in GigE) and tap0 (virtual device for the openVPN service) are attached to it. This is the gateway interface for all devices on my LAN. tun0 is the cisco VPN (that sucks IMO) that I'm "supposed" to use for work, but my openVPN connection is much more stable.

In general, things work great. Because EQEMU doesn't build on 64-bit systems, I decided to try and take the complexity of trying to build a 32-bit binary on a 64-bit machine by installing CentOS 32-bit in a VM. It went well, and I had no issues running the server from inside the VM, using iptables to portforward to the VM.

I don't need the VM, so I copied the data to the 64-bit OS, (installed the missing i386 rpms) and the server seemed to run fine. However, when I try to connect with my client, I got:

Code:

22225 [05.09. - 15:48:42] [NET__ERROR] 10.9.8.2:57355: Received OP_SessionRequest in ESTABLISHED state (0)
22225 [05.09. - 15:48:58] [NET__ERROR] 10.9.8.2:57355: Received OP_SessionRequest in ESTABLISHED state (0)

Googling suggested that there is a problem with the way IPs are communicated to the client. So I statically set my LAN and WAN ips in the eqemu_config.xml file, and clients are able to connect now.

I'll try to pick this apart a little more later, but I need to run for now. Any ideas what the problem is? Suggested resolutions?

Code:

br0       Link encap:Ethernet  HWaddr 00:24:81:ED:2D:E5
          inet addr:10.9.8.1  Bcast:10.9.8.255  Mask:255.255.255.0
          inet6 addr: fe80::224:81ff:feed:2de5/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:67457095 errors:0 dropped:0 overruns:0 frame:0
          TX packets:44750010 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:13845612189 (12.8 GiB)  TX bytes:166189726342 (154.7 GiB)

eth0      Link encap:Ethernet  HWaddr 00:24:81:ED:2D:E5
          inet6 addr: fe80::224:81ff:feed:2de5/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:61869914 errors:0 dropped:0 overruns:0 frame:0
          TX packets:128803143 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:8907272573 (8.2 GiB)  TX bytes:305683407611 (284.6 GiB)
          Memory:f0180000-f01a0000

eth1      Link encap:Ethernet  HWaddr 00:0A:CD:19:14:7C
          inet addr:71.195.208.39  Bcast:255.255.255.255  Mask:255.255.252.0
          inet6 addr: fe80::20a:cdff:fe19:147c/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:318861343 errors:205 dropped:422 overruns:119 frame:0
          TX packets:71343517 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:132203390437 (123.1 GiB)  TX bytes:25092296785 (23.3 GiB)
          Interrupt:209 Base address:0x6000

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:26815275 errors:0 dropped:0 overruns:0 frame:0
          TX packets:26815275 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:32066337738 (29.8 GiB)  TX bytes:32066337738 (29.8 GiB)

tap0      Link encap:Ethernet  HWaddr 16:A3:52:9B:C2:4D
          inet6 addr: fe80::14a3:52ff:fe9b:c24d/64 Scope:Link
          UP BROADCAST RUNNING PROMISC MULTICAST  MTU:1500  Metric:1
          RX packets:1090418 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1600768 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:100
          RX bytes:493715703 (470.8 MiB)  TX bytes:262383473 (250.2 MiB)

tun0      Link encap:UNSPEC  HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
          inet addr:172.30.90.2  P-t-P:172.30.90.2  Mask:255.255.255.255
          UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1412  Metric:1
          RX packets:508 errors:0 dropped:0 overruns:0 frame:0
          TX packets:355 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:500
          RX bytes:578661 (565.0 KiB)  TX bytes:33720 (32.9 KiB)

Code:

[kai@server server]$ brctl show
bridge name     bridge id               STP enabled     interfaces
br0             8000.002481ed2de5       no              tap0
                                                        eth0