Cisco IDS-4230-FE - Intrusion Detection Sys Fast Ethernet Sensor Installation And Configuration Manual page 429

Appendix B Troubleshooting
Using the TCP Reset Interface
Connecting a Serial Cable to the IDSM-2
Step 1
Step 2
Step 3
Cisco Intrusion Detection System Appliance and Module Installation and Configuration Guide Version 4.1
78-15597-02
Access Mode VLAN: 146 (10.89.149.0/25_QA_Sensors)
Trunking Native Mode VLAN: 1 (default)
Trunking VLANs Enabled: ALL
Pruning VLANs Enabled: 2-1001
Vlans allowed on trunk:146
Vlans allowed and active in management domain: 146
Vlans in spanning tree forwarding state and not pruned:
146
Access Vlan = 146
The IDSM-2 has a TCP reset interface—port 1. The IDSM-2 has a specific TCP
reset interface because it cannot send TCP resets on its sensing ports.
If you have reset problems with the IDSM-2, try the following:
• If the sensing ports are access ports (a single VLAN), you must configure the
reset port to be in the same VLAN.
• If the sensing ports are dot1q trunk ports (multi-VLAN), the sensing ports and
reset port all must have the same native VLAN, and the reset port must trunk
all the VLANs being trunked by both the sensing ports.
You can connect a serial cable directly to the serial console port on the IDSM-2.
This lets you bypass the switch and module network interfaces.
To connect a serial cable to the IDSM-2, follow these steps:
Locate the two RJ-45 ports on the IDSM-2.
You can find them approximately in the center of the mother board. If you are
facing the module faceplate, the RJ-45 port on the right is the serial console port.
Connect a straight-through cable to the right port on the IDSM-2, and then
connect the other end of the cable to a terminal server port.
Configure the terminal server port to be 19200 baud, 8 bits, no parity.
Troubleshooting the IDSM-2
B-51