Background: I'm a development lead at a small software house. (~30 employees) Our IT guy recently retired, and our CEO, who is non-technical, can't be convinced to replace him. His reasoning is complicated, but it more or less comes down to "We've got all these computer folks working here already, why don't they just handle it?" One problem arising from this is that we use a Cisco ASA 5500 and none of us know anything about Cisco routers
Question: Approximately how much of a time commitment will it be for an experienced software developer to learn enough that they can reliably make config changes and troubleshoot problems?