22-03-2015, 11:28 PM
Sure, if this were still back in the sb4100 days, like a decade ago... Back when the only form of security an ISP had was the fact that no one knew shit about them. You'd just set your PC's IP manually to match the TFTP server's IP, host your own TFTP with the edited config, and the sb4100 would prioritize the ethernet over the coax and grab the config from you. Of course, that was fixed sometime after SB4100-0.4.4.0-SCM06, but hey, maybe you're from the past and can put that info to use... 
Now, you won't find an ISP that lets you edit configs, there have been a couple of ways they've verified that it's one of their configs. You certainly won't be able to run a different config on an unmodded subbed modem, either.
Now, you won't find an ISP that lets you edit configs, there have been a couple of ways they've verified that it's one of their configs. You certainly won't be able to run a different config on an unmodded subbed modem, either.