Exporting Nat Logs To The Information Center - 3Com MSR 50 Series Configuration Manual

Exporting NAT Logs to
the Information Center
n
[Router-Serial1/0] nat server protocol tcp global 202.38.160.100 ins
ide 10.110.10.4 smtp
Network requirements
A host in the private network accesses Device B in the public network through
■
Device A, which is enabled with NAT;
Device A sends NAT logs to the information center in the form of system logs;
■
You can view the records on the information center to supervise the private
■
network users.
Network diagram
Figure 530 Export NAT logs to the information center
Vlan -int1
192.168 .1.5/24
Eth1/0
Host
192.168.1.6/24
Configuration procedure
The following only lists configurations pertinent to NAT logs. Configurations
regarding the IP addresses of the devices and NAT function are omitted here.
# Specify to export the NAT logs of Device A to the information center.
<DeviceA> system-view
[DeviceA] userlog nat syslog
# Enable the NAT log function on Device A.
[DeviceA] nat log enable
# View the log buffer to monitor access records.
[DeviceA] quit
<DeviceA> dir
Directory of cf:/
0 -rw- 16850028
1 drw-
2 -rw- 1747
3 -rw- 524288
4 -rw- 524288
249852 KB total (232072 KB free)
File system type of cf: FAT32
<DeviceA> cd logfile
<DeviceA> more logfile.log
Eth1/1 Eth1/0
1.1 .1.1/24 1.1.1.4/24
Device A
Aug 07 2009 04:02:42
- Aug 07 2005 05:13:48
Aug 07 2009 04:05:38
Aug 13 2009 01:27:40
Aug 13 2009 01:27:40
NAT Configuration Example
Loop 1
2.2.2.2/24
Device B
mainpack.bin
logfile
config.cfg
basicbtm.bin
extendbtm.bin
1825