You can still apply for more IPv4 addresses. We applied for some additional v4 space this year and we got it. We used to PAT at our border firewall, but logging and tracking DMCA complaints was a pain, not impossible, just a pain. In addition, by adding NAT you are adding another point of failure in your infrastructure. That got us a couple of times when our older firewall used to crash every other month. If you got equipment that can reliably handle NAT, then you don't have to worry about that.
I'll say that we are heavily pushing for IPv6. In fact, we support it throughout our campus (we run dual stack), but until we see more adoption, we'll have to still rely on IPv4. Thanks, Hector Rios Louisiana State University From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:[email protected]] On Behalf Of Hurt,Trenton William Sent: Monday, August 22, 2011 6:32 PM To: [email protected] Subject: [WIRELESS-LAN] Public IP to nat/pat We have recently deployed wireless in all are residence halls and are in the process of completing a ubiquitous wireless deployment across our entire campus. We currently use public ips for the wireless address space to serve client devices. We are concerned that we will eventually run out of usable ips for client use in the near future, and therefore have begun looking at moving to nat/pat environment. I would like to hear from folks who have done this and get feedback about any issues that they saw during/after this transition, and how they handled them. (DMCA, gaming, etc.) I have searched the forum and found these posts, but I would like to get a updated thread going in case any new issues have arose since these posts. http://listserv.educause.edu/cgi-bin/wa.exe?A2=ind0807&L=WIRELESS-LAN&D= 0&P=76 http://listserv.educause.edu/cgi-bin/wa.exe?A2=ind0610&L=WIRELESS-LAN&D= 0&P=5400 Thanks, Trent Trenton Hurt, CCNP(W), CCNA(W), CCNA(V), CCNA(R/S) Wireless Network Administrator University of Louisville ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
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