* * * * *

                         Time to do networking right

Unlike Wednesday [1], I have all the time I want to remove the firewall
between our core router and the DSL (Digital Subscriber Line) router.

It went much smoother if a bit longer than I expected. The big stumbling
block wasn't cached ARP entries like I suspected, or even the wrong type of
cable but the phyical port configurations. When one side (the DSL router) had
a link light, but not the other side (our core router) it hit me that it
might be the port settings. Our core router had the port pegged to 100Mbps,
full duplex with no autonegotiation of port settings, and didn't care for the
DSL router attempting to autonegotiate the settings. Once I reconfigured the
port on the core router to autonegotiate, the link came up, and OSPF (Open
Shortest Path First) worked flawlessly across all five routers running it.

So now all that remains is getting the T-1 install for XXXXXXXX and weighing
the routes appropriately.

[1] gopher://gopher.conman.org/0Phlog:2006/04/26.1

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