I have a few Cisco routers (851w and 2600) that I am using to study for my CCNA, I want to connect a modem to my aux port (RJ45) for dial up access. What type of modem and cable do I need?
What type of modem and cable do I need to dial into the aux port of my cisco router?
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Few people still do dial in to a router, but you are right, it is supported and through the AUX port. The modem itself can theoretically be any modem, but common modems like Hayes work the best. You typically need to set the dip switches on the modem for Auto Answer (AA On) or it will ring and not pick up. You can hook up a modem and try auto-confgure as well:
under line aux 0
modem autoconfigure discovery
To actually configure to allow dial in (and this is from memory, it is very rare to see it anymore)
line aux 0
modem InOut
modem autoconfigure type <discovery type from above>
transport input all
stopbits 1
speed 115200
Keep in mind the modem settings can differ from country to country. As to the cable, there used to be one with every device, DB25 to RJ45 … wit hlike 9 ofd the 25 pins actually hot.
Good luck!