On 08/28/2012 11:12 AM, Damien Fleuriot wrote:
Hi Giulio,
Just to clear things up:
igb0: 192.168.9.60/24
lagg0: 192.168.12.21/24
Yes.
Actually I notice now that the lagg0 address is different from what
I wrote below in my rc.conf (192.168.12.7). I've just made many test
with different configuration, but no matter, it just doesn't work...
What's the IP of the host you're trying ssh connections from ?
I'm just trying to connect to and from management interface igb0
(192.168.9.60).
From external pc I do : ssh myuser@192.168.9.60
From that server I do : ssh myuser@pcaddress
Just to be more precise, the consequences are:
1) daemon sshd on the server gets stuck and becomes unkillable
2) the first connection may work, but then the program ssh on the
server becomes unresponsive and unkillable
If I don't create a lagg0 interface and just connect (say) igb1 to
the data switch, I've no problem and everything works.
Just to answer others' question, I connect igb1, igb2 and igb3 to the
same data switch in ports configured for aggregation.
I connect igb0 to another management switch (of course not configured
for aggregation)
Also, just in case, did you enable any firewall ? (PF, ipfw)
As I already said, no. Nothing is working/active on this server, just sshd.
Thank you.
On 27 August 2012 21:22, Giulio Ferro <au...@zirakzigil.org> wrote:
Hi, thanks for the answer
Here is what you asked for:
# ifconfig igb0
igb0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=4401bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,VLAN_HWTSO>
ether ...
inet 192.168.9.60 netmask 0xffffff00 broadcast 192.168.9.255
inet6 .... prefixlen 64 scopeid 0x1
nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
media: Ethernet autoselect (1000baseT <full-duplex>)
status: active
# netstat -rn
Routing tables
Internet:
Destination Gateway Flags Refs Use Netif Expire
default 192.168.9.1 UGS 0 0 igb0
127.0.0.1 link#12 UH 0 0 lo0
192.168.9.0/24 link#1 U 0 14 igb0
192.168.9.60 link#1 UHS 0 0 lo0
192.168.12.0/24 link#13 U 0 109 lagg0
192.168.12.21 link#13 UHS 0 0 lo0
Internet6:
Destination Gateway Flags
Netif Expire
::/96 ::1 UGRS lo0
::1 link#12 UH lo0
::ffff:0.0.0.0/96 ::1 UGRS lo0
fe80::/10 ::1 UGRS lo0
fe80::%igb0/64 link#1 U igb0
fe80::ea39:35ff:feb6:a0d4%igb0 link#1 UHS lo0
fe80::%igb1/64 link#2 U igb1
fe80::ea39:35ff:feb6:a0d5%igb1 link#2 UHS lo0
fe80::%igb2/64 link#3 U igb2
fe80::ea39:35ff:feb6:a0d6%igb2 link#3 UHS lo0
fe80::%igb3/64 link#4 U igb3
fe80::ea39:35ff:feb6:a0d7%igb3 link#4 UHS lo0
fe80::%lo0/64 link#12 U lo0
fe80::1%lo0 link#12 UHS lo0
fe80::%lagg0/64 link#13 U lagg0
fe80::ea39:35ff:feb6:a0d5%lagg0 link#13 UHS lo0
ff01::%igb0/32 fe80::ea39:35ff:feb6:a0d4%igb0 U igb0
ff01::%igb1/32 fe80::ea39:35ff:feb6:a0d5%igb1 U igb1
ff01::%igb2/32 fe80::ea39:35ff:feb6:a0d6%igb2 U igb2
ff01::%igb3/32 fe80::ea39:35ff:feb6:a0d7%igb3 U igb3
ff01::%lo0/32 ::1 U lo0
ff01::%lagg0/32 fe80::ea39:35ff:feb6:a0d5%lagg0 U
lagg0
ff02::/16 ::1 UGRS lo0
ff02::%igb0/32 fe80::ea39:35ff:feb6:a0d4%igb0 U igb0
ff02::%igb1/32 fe80::ea39:35ff:feb6:a0d5%igb1 U igb1
ff02::%igb2/32 fe80::ea39:35ff:feb6:a0d6%igb2 U igb2
ff02::%igb3/32 fe80::ea39:35ff:feb6:a0d7%igb3 U igb3
ff02::%lo0/32 ::1 U lo0
ff02::%lagg0/32 fe80::ea39:35ff:feb6:a0d5%lagg0 U
lagg0
# netstat -aln | grep 22
tcp4 0 0 *.22 *.* LISTEN
tcp6 0 0 *.22 *.* LISTEN
Note that I already tried to only listen on igb0 interface (192.168.9.60) in
sshd_config, but the results are exactly
the same described below.
On 08/25/2012 01:22 PM, Damien Fleuriot wrote:
In the meantime kindly post:
Ifconfig for your igb0
Netstat -rn
Netstat -aln | grep 22
On 25 Aug 2012, at 13:18, Damien Fleuriot <m...@my.gd> wrote:
I'll get back to you regarding link aggregation when I'm done with
groceries.
We use it here in production and it works flawlessly.
On 25 Aug 2012, at 09:54, Giulio Ferro <au...@zirakzigil.org> wrote:
No answer, so it seems that link aggregation doesn't really work in
freebsd,
this may help others with the same problem...
I reverted back to one link for management and one for service, and ssh
works as it should...
On 08/21/2012 11:18 PM, Giulio Ferro wrote:
Scenario : freebsd 9 stable (yesterday) amd64 on HP server with 4 nic
(igb)
1 nic is connected standalone to the management switch, the 3 other
nics
are connected to a switch configured for aggregation.
If I configure the first nic (igb0) there is no problem, I can operate
as I normally do and sshd functions normally.
The problems start when I configure the 3 other nics for aggregation:
in /etc/rc.conf
...
ifconfig_igb1="up"
ifconfig_igb2="up"
ifconfig_igb3="up"
cloned_interfaces=lagg0
ifconfig_lagg0="laggproto lacp laggport igb1 laggport igb2 laggport
igb3 192.168.12.7/24"
...
I restart the server and the aggregation seems to work correctly, in
fact ifconfig returns the correct lagg0 interface with the aggregated
links, the correct protocol (lacp) and the correct ip address and the
status is active. I can ping other IPs on the aggregated link.
Also the other (standalone) link seems to work correctly. I can ping
that address from other machines, and I can ping other IPs from that
server.
DNS lookups work ok too I can also use telnet to connect to pop3
servers so there seems to be no problem on the network stack.
But if I try to connect to the sshd service on that server, it hangs
indefinitely. On the server I find two sshd processes:
/usr/sbin/sshd
/usr/sbin/sshd -R
There is no message in the logs.
If I try to kill sshd (/etc/rc.d/sshd stop) I can't. it just stays
there
forever waiting for the pid to die (it never does)
Even ssh client doesn't seem to work. In fact, if I try to connect to
another server, the ssh client may start to work correctly, then soon
or later it just hangs there forever, and I can't kill it with ctrl-c.
No firewall is configured, there is nothing else working on this
server.
Thanks for any suggestions...
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