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Why does my Cisco Switch show 'Module [dec] image version mismatch'?
This error on your Cisco Switch indicates a version mismatch between the MFSC and the CSM code. To resolve this, upgrade or downgrade the MFSC version to match the CSM version, which should allow the CSM to come online.
General| Product Type | Switch |
|---|---|
| Switch Type | Modular |
| Switching Capacity | Up to 720 Gbps |
| Forwarding Rate | Up to 400 Mpps |
| Modular | Yes |
| Uplink Ports | Varies by module |
| QoS | Yes |
| Rack-mountable | Yes |
| Series | Catalyst 6500 |
| Power over Ethernet (PoE) | Available on some models |
| Operating System | Cisco IOS |
| Redundancy | Yes (Supervisor engine, power supply) |
| Form Factor | Chassis-based |
| Slot Count | 3, 6, 9, or 13 slots |
| Management | CLI, SNMP |
| Security Features | ACLs, 802.1X, port security |
| VLAN Support | Yes |
Explains how the FWSM inspects traffic using the Adaptive Security Algorithm and session management path.
Describes how to partition a single FWSM into multiple virtual firewalls (security contexts).
Details how to connect to the FWSM CLI, log in, and access configuration mode.
Details how to set the FWSM to run in routed or transparent firewall mode.
Explains security contexts as virtual firewalls within a single FWSM.
Provides procedures to convert from single to multiple context mode and vice versa.
Details how to configure resource limits per context to prevent resource overuse.
Describes how to add a security context, including VLANs, resource class, and configuration URL.
Covers changing login, enable, and maintenance partition passwords for security.
Explains how to name and assign security levels to interfaces for full FWSM configuration.
Describes how to enable and configure ARP inspection to prevent ARP spoofing.
Details setting IP addresses for routed or transparent firewall modes.
Explains how to configure the default route for FWSM traffic to reach unknown destinations.
Describes how to configure static routes for networks not directly connected to the FWSM.
Details how to use the Dynamic Host Configuration Protocol (DHCP) server provided by the FWSM.
Describes how to configure the FWSM to forward DHCP requests to a connected router.
Explains how Network Address Translation (NAT) works on the FWSM.
Explains how dynamic NAT translates local addresses to a pool of global addresses.
Describes PAT, which translates multiple local addresses to a single global IP address and unique port.
Explains how static NAT translates each local address to a fixed global address.
Details static PAT, which translates local IP to global IP and local port to global port.
Provides an overview of ACLs, their components (ACEs), and general guidelines for creation.
Explains how to use extended ACLs to control IP traffic based on source, destination, protocol, or port.
Provides step-by-step instructions for adding extended ACEs to an ACL.
Describes using object groups to simplify ACL creation and maintenance.
Covers configuring Telnet access to the FWSM for management purposes.
Explains how to configure SSH access for secure management connections to the FWSM.
Describes how to configure IPSec VPN tunnels for secure management access.
Introduces AAA (Authentication, Authorization, Accounting) for user access control.
Describes how to manage users in the local database for CLI and VPN access authentication.
Explains how to configure username/password authentication for CLI login and enable commands.
Details configuring authentication for users entering the enable or login commands.
Describes how to control user access to specific commands via privilege levels or TACACS+.
Explains how to assign commands to privilege levels and enable local command authorization.
Details configuring TACACS+ for command authorization by checking commands against the server.
Provides common lockout conditions and workarounds for CLI authentication and command authorization.
Describes configuring RADIUS or TACACS+ for network access authentication.
Explains how to enable network access authentication using an ACL and a server group.
Describes configuring authorization rules or dynamic ACLs for network traffic access.
Explains how to configure network access authorization using TACACS+ servers.
Describes how to configure RADIUS servers to download ACLs for per-user authorization.
Details how to send accounting information to RADIUS or TACACS+ servers for traffic tracking.
Provides an overview of application protocol inspection (fixup) and its impact on throughput.
Provides instructions on how to configure or disable inspection engines for various protocols.
Discusses using external servers for practical web and FTP filtering over ACLs.
Details FWSM communication with filtering servers, handling errors, long URLs, and caching.
Provides detailed steps to configure failover for the primary and secondary modules.
Explains how to verify the failover configuration using the 'show failover' command.
Details how to install or upgrade application, PDM, or maintenance software.
Explains copying application or PDM software to the current partition from a server.
Covers downloading text configurations and backing up configuration files.
Explains methods to back up configuration to an external server or terminal display.
Details backing up single-mode or multiple-mode system configurations to an external server.
Provides steps and techniques for troubleshooting FWSM issues.
Guides on testing FWSM connectivity, pinging interfaces, and verifying traffic flow.
Details how to recover from forgotten passwords or AAA lockout situations.
Example of creating multiple security contexts with inside, outside, and DMZ interfaces.
Example of transparent mode FWSM with multiple contexts and outside access.
