Ok, I have now ssh account with which I can reproduce the errors. The
error is now narrowed down to inside the box: tcpdump shows that data is
coming in, but nothing is leaving.
The box is a xen system with 2 if-cards which are shared with xen
guests. The error is connected to eth0 (not eth1) and affects both the
host and one guest system. However, guest4, which uses eth0 only, works
quite ok!
Here is a list of the host and guest, their if cards, and errors:
xen host: eth0 (produces the error with some clients)
...and eth1 (default gateway; works ok)
guest2: eth1 (ok)
guest3: eth1 (ok)
guest4: eth0 (ok)
guest5: eth0 (errors), eth1 (ok)
Below is some more data. I would still need ideas about what to test.
Again I made sure that the firewall (iptables) does not cause the error.
Not tcpwrapper either: /etc/hosts.allow and /etc/hosts.deny are both empty.
- Jussi
Physical if cards:
Intel Corporation 82567LM-3 Gigabit Network Connection
(eth0; on motherboard)
Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+
(eth1; very old card)
ifconfig output:
eth0 Link encap:Ethernet HWaddr 00:1C:C0:D7:A6:5B
inet addr:62.236.221.67 Bcast:62.236.221.79
Mask:255.255.255.240
inet6 addr: fe80::21c:c0ff:fed7:a65b/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1470 errors:0 dropped:0 overruns:0 frame:0
TX packets:37 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:121445 (118.5 KiB) TX bytes:7584 (7.4 KiB)
eth1 Link encap:Ethernet HWaddr 00:02:44:97:95:50
inet addr:62.220.237.104 Bcast:62.220.237.127
Mask:255.255.255.224
inet6 addr: fe80::202:44ff:fe97:9550/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:22601 errors:0 dropped:0 overruns:0 frame:0
TX packets:3371 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:1644700 (1.5 MiB) TX bytes:598979 (584.9 KiB)
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:168 errors:0 dropped:0 overruns:0 frame:0
TX packets:168 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:11574 (11.3 KiB) TX bytes:11574 (11.3 KiB)
peth0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
UP BROADCAST RUNNING NOARP MTU:1500 Metric:1
RX packets:49343 errors:0 dropped:0 overruns:0 frame:0
TX packets:35975 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:5661018 (5.3 MiB) TX bytes:5200943 (4.9 MiB)
Memory:d0600000-d0620000
peth1 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
UP BROADCAST RUNNING NOARP MTU:1500 Metric:1
RX packets:115801 errors:0 dropped:0 overruns:0 frame:0
TX packets:125786 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:23407678 (22.3 MiB) TX bytes:83301169 (79.4 MiB)
Interrupt:19 Base address:0xa100
vif0.0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
UP BROADCAST RUNNING NOARP MTU:1500 Metric:1
RX packets:37 errors:0 dropped:0 overruns:0 frame:0
TX packets:1470 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:7584 (7.4 KiB) TX bytes:121445 (118.5 KiB)
vif0.1 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
UP BROADCAST RUNNING NOARP MTU:1500 Metric:1
RX packets:3391 errors:0 dropped:0 overruns:0 frame:0
TX packets:22614 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:603387 (589.2 KiB) TX bytes:1645558 (1.5 MiB)
vif2.0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
UP BROADCAST RUNNING NOARP MTU:1500 Metric:1
RX packets:5877 errors:0 dropped:0 overruns:0 frame:0
TX packets:23727 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:32
RX bytes:379075 (370.1 KiB) TX bytes:2115170 (2.0 MiB)
vif3.0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
UP BROADCAST RUNNING NOARP MTU:1500 Metric:1
RX packets:28011 errors:0 dropped:0 overruns:0 frame:0
TX packets:50422 errors:0 dropped:22 overruns:0 carrier:0
collisions:0 txqueuelen:32
RX bytes:16503337 (15.7 MiB) TX bytes:12688396 (12.1 MiB)
vif4.0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
UP BROADCAST RUNNING NOARP MTU:1500 Metric:1
RX packets:32753 errors:0 dropped:0 overruns:0 frame:0
TX packets:34011 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:32
RX bytes:4416529 (4.2 MiB) TX bytes:4253292 (4.0 MiB)
vif5.0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
UP BROADCAST RUNNING NOARP MTU:1500 Metric:1
RX packets:3302 errors:0 dropped:0 overruns:0 frame:0
TX packets:16735 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:32
RX bytes:280451 (273.8 KiB) TX bytes:1521618 (1.4 MiB)
vif5.1 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
UP BROADCAST RUNNING NOARP MTU:1500 Metric:1
RX packets:59898 errors:0 dropped:0 overruns:0 frame:0
TX packets:71340 errors:0 dropped:74 overruns:0 carrier:0
collisions:0 txqueuelen:32
RX bytes:62709103 (59.8 MiB) TX bytes:10451893 (9.9 MiB)
virbr0 Link encap:Ethernet HWaddr 00:00:00:00:00:00
inet addr:192.168.122.1 Bcast:192.168.122.255
Mask:255.255.255.0
inet6 addr: fe80::200:ff:fe00:0/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:27 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b) TX bytes:6484 (6.3 KiB)
xenbr0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
UP BROADCAST RUNNING NOARP MTU:1500 Metric:1
RX packets:1135 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:82476 (80.5 KiB) TX bytes:0 (0.0 b)
xenbr1 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
UP BROADCAST RUNNING NOARP MTU:1500 Metric:1
RX packets:17410 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:819653 (800.4 KiB) TX bytes:0 (0.0 b)
--
Jussi Hirvi * Green Spot
Topeliuksenkatu 15 C * 00250 Helsinki * Finland
Tel. +358 9 493 981 * Mobile +358 40 771 2098 (only sms)
jussi.hirvi at greenspot.fi * http://www.greenspot.fi