If you would like to configure you Cisco Router or switch to send all it’s logs to a SysLog server all you have to do is to type a few command that will tell the router\switch to send the logs to the server.
To do that:
Log to the router \ switch and type (in this example I used a switch):
SWITCH# Config t
SWITCH(config)#logging 172.40.51.44 — SysLog IP address
SWITCH(config)#logging trap notifications — What do you want to send
SWITCH(config)#logging source-interface ? — Interface that will send the logs
Async Async interface
Auto-Template Auto-Template interface
BVI Bridge-Group Virtual Interface
CTunnel CTunnel interface
Dialer Dialer interface
Filter Filter interface
Filtergroup Filter Group interface
GigabitEthernet GigabitEthernet IEEE 802.3z
GroupVI Group Virtual interface
Lex Lex interface
Loopback Loopback interface
Null Null interface
Port-channel Ethernet Channel of interfaces
Portgroup Portgroup interface
Pos-channel POS Channel of interfaces
Tunnel Tunnel interface
Vif PGM Multicast Host interface
Virtual-Template Virtual Template interface
Virtual-TokenRing Virtual TokenRing
Vlan Catalyst Vlans
fcpa Fiber Channel
SWITCH(config)#logging source-interface vlan2�
SWITCH(config)#exit
All done, don’t forget to save the config.
ROUTER(config)#copy run start.