Cisco switches can provide security, flexibility, and expandability to networks. As an example, the Catalyst 6500 Series switches can be equipped with modules that are full-fledged security devices themselves. Some example security modules are as follows:
• Cisco Firewall service module
• Cisco Internet Protocol security (IPsec) virtual private network (VPN) service module
• Cisco Intrusion Detection System (IDS)
• Cisco Secure Socket Layer (SSL)
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