I just found out that I need to have a service contract with CISCO to be able to get the IOS 12.3(1). I do not have a contract. Is there any other WAN card that would be compatible with the CISCO 1720 ios 12.2(16a)?
I have IOS version 12.2(16a) and am told that it does not support WIC-1ENET card in either slot 0 or 1. I need to get IOS 12.3(1) (I think). I have never installed CISCO IOS. Where can I get this software and will it affect the fact that I currently have IP/FW/IDS/IPSEC 56K?
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