Guest wireless restrictions

[David Curry <david.curry () NEWSCHOOL EDU>]

We're (still) in the process of thinking about how we want to split our
wireless network into two SSIDs, one for students/faculty/staff and one for
"guests" (in quotes because students and staff may be allowed to use it
too). We're thinking we want to do what a number of other schools have
done, and limit the "guest" SSID to a few protocols:

   - ICMP
   - HTTP and HTTPS
   - POP and IMAP in their SSL flavors only (no plaintext)
   - SMTP in its SSL and TLS flavors only (no plaintext)
   - VPN (IPSec, PPTP, L2TP)

which after Googling around a bit seems to be a pretty common set (some
also allow unencrypted POP/IMAP/SMTP, and others also allow various flavors
of chat/instant messaging).

We'd also like (we think) to limit individual user bandwidth on the guest
wireless, partly to cut down on the damage a "misbehaving" client can
cause, and partly to encourage students/faculty/staff to move over to the
"secure" SSID. Googling around on this topic, I've been able to find lots
of schools doing this, but very few that document what their limits
actually are.

So, two questions:

   1. If you limit the protocols on your guest wireless, is there anything
   not in the list above that you've found it necessary to allow?
   2. If you limit the bandwidth (speed) on your guest wireless, what are
   your download/upload limits (speeds), and what does that allow/not allow
   (e.g., streaming audio/video).

Thanks,

--Dave


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