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Special-use IPv4 addresses and domains
You’ve probably heard of RFC1918 – the well-known set of networks assigned for use in off-Internet, private networks. In fact there’s a much more useful RFC, one which lists not only these but a group of other networks and subnets … Continue reading
Posted in Best Practices, Documentation
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Fixing the iPhone OS WiFi auto-login problem
Some time ago, shortly after iPhone OS 3.0 was released, we received a number of reports from users that our VPN-based wireless service had become unusable. For those not familiar with this service, OWL is one of our local wireless … Continue reading
Posted in VPN, Wireless
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Connecting to JANET
Sorry it’s been a little while since our last post. We’re just coming to the end of the summer vacation, the point when we (and most other IT support staff around the university) get things ship-shape in time for the … Continue reading
Posted in Backbone Network, Cisco Networks
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Moving to a new ARP and MAC logging system
To locate a node (workstation, printer, etc) on the network, you use a combination of the ARP logs from a router, and the MAC-port mappings from a switch. The ARP log translates IP to MAC, and the MAC-port log translates … Continue reading
Posted in Backbone Network
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Hello world!
Welcome to the OUCS Networks Team blog. This blog is a new venture for us, but it’s something we’ve wanted to do for a long time. Our days are filled with a mix of the usual IT firefighting but also … Continue reading
Posted in Uncategorized
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