Operating System - Linux
1748256 Members
3990 Online
108760 Solutions
New Discussion юеВ

Re: linux losts network connection by Port Mirroring

 
SOLVED
Go to solution
'chris'
Super Advisor

linux losts network connection by Port Mirroring

hi

I'd like to sniff with linux suse on the switched network.

each time when I enable Port Mirroring
on the DELL Switch PowerConnect 3024
with the newest firmware 6.1.2.3291,
then my linux SUSE 8.2 prof. server losts the connection.

knows someone what's wrong ?

# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
0.0.0.0 192.168.0.1 0.0.0.0 UG 0 0 0 eth0

# ifconfig -a
eth0 Link encap:Ethernet HWaddr 00:09:85:G2:88:9B
inet addr:192.168.0.5 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe90::209:75ff:fef3:777a/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1356 Metric:1
RX packets:7876 errors:3 dropped:0 overruns:0 frame:3
TX packets:11241 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:2541136 (2.4 Mb) TX bytes:1895596 (1.8 Mb)
Interrupt:10 Base address:0xecc0 Memory:ff8e0000-ff900000

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:43660 errors:0 dropped:0 overruns:0 frame:0
TX packets:43660 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:2355411 (2.2 Mb) TX bytes:2355411 (2.2 Mb)

sit0 Link encap:IPv6-in-IPv4
NOARP MTU:1480 Metric:1
RX packets:0 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:0 (0.0 b) TX bytes:0 (0.0 b)
3 REPLIES 3
Chris Saunderson
Frequent Advisor
Solution

Re: linux losts network connection by Port Mirroring

Do you get any syslog or /var/adm/messages information regarding what happens to the port?
Ted Nugent called. He wants his shirt back.
'chris'
Super Advisor

Re: linux losts network connection by Port Mirroring

hi

No, I don't get any information and really
don't understand what's wrong ?

greetings
chris

'chris'
Super Advisor

Re: linux losts network connection by Port Mirroring

hi

I think I've found the answer.

The switch is working as designed.
It disables by port mirroring any traffic to/from the destination port while replicates all traffic from the source port.

regards
chris