Teddy Boomk kudos Received
reply to Teddy Boom
Re: Employer req. "security" from ISP: Rogers, Start, One of my customers from a year or two ago does telephone support from home. She was required to have internet service with more than 6mbit/s download speed to run her VoIP equipment (no upload requirement).... That's why I opened up the question
This customer is relatively non-technical, and may be concerned because of hearsay around the office more than actual issues. However, it seems possible that a bureaucratically minded admin might decide to blacklist large blocks of IPs, or do some kind of reverse lookup to check what ISP an IP is coming from before allowing access, or who knows what else I may not have thought of.
So anyway.. I think the theoretical/technical question of whether it is reasonable to make requirements about the ISP is well answered: the ISP shouldn't have any role in the security, they just provide the bits. The practical question is, do some employers require certain ISPs in written agreements, or use technical means to blacklist some ISPs. It may not be warranted, but it might still happen.