hello guys,
Yes, you are right. I did not check Filter option on my syslog server. But in fact, I did receive logs from different cisco devices and servers. All my cisco devices are in same sub net, 192.168.1.*. Another interesting thing is 3750 switch is sending message to syslog server by another vlan ip 192.168.0.1, not 192.168.1.2. I attached my vlan configuration in 3750 fyi. I guess that's the problem I can not find message by 192.168.1.2. Noe I can see all logs from devices. Thank you everybody.
Interface IP-Address OK? Method Status Protocol
Vlan1 192.168.1.2 YES NVRAM up up
Vlan2 192.168.0.1 YES NVRAM up up
Vlan3 192.168.3.1 YES NVRAM up up
Vlan4 192.168.4.1 YES NVRAM up up
Vlan5 192.168.5.1 YES NVRAM up up
Vlan6 192.168.6.1 YES NVRAM up up
Vlan7 192.168.7.1 YES NVRAM up up
Vlan8 192.168.8.1 YES NVRAM up up
Vlan9 192.168.9.1 YES NVRAM up up
Vlan10 192.168.10.1 YES NVRAM up up
Vlan11 192.168.11.1 YES NVRAM up up
Vlan12 192.168.12.1 YES NVRAM up up
Vlan13 192.168.13.1 YES NVRAM up up