Shelly
In the short term it may be that you now have sufficient information to give your boss some answers to his question. Points that you could make about why you do not want to remove the "extra" T1 include:
- loss of bandwidth for access to the outside world.
- loss of redundancy in the connection to outside.
- introduction of a significant single point of failure in the network (a T1 is much more likely to suffer a problem which interrupts transmission of data than is the router, your hub/switch, or your LAN network).
In the longer term I would worry about having a router which provides network connectivity and which you do not know how to access or to manage.
We could probably figure out the IP address of the FE interface of the router. It is probably the default gateway of the switch, or if your network is a single VLAN network (flat network) it is likely that your PC default gateway is the router interface address. But unless the previous consultant used some very obvious passwords, as suggested in a previous post, you will probably need to do the password recovery procedure on your router. We could provide you with links to documentation describing how to do it, or you might want to ask your boss to provide some funds so that you could engage a consultant to come in and assist with this. (It is not difficult once you know what you are doing, but it may be a bit daunting to someone who knows little or nothing about Cisco routers).
HTH
Rick
HTH
Rick
