I have an office which has a CISCO PIX 501 firewall and 3 CISCO\nCatalyst 2950T-24 switches? I have the latest IOS version on the PIX\nbut am wondering if there is an benefit in upgrading the IOS on the\nswitches. All switches are on the LAN behind the PIX so would their be\nany security vulnerabilities that could be taken advantage of? Is it\nreally worth upgrading the IOS if they work fine as is and I don't\nneed any of the new features? Thanks for your input/help!