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ip routing to switch

Posted on 2011-09-15
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If I add "ip routing" to a production switch, what problems would/could occur?
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Question by:s_coad5
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I'm assuming that this is a Cisco switch that is capable of L3 routing, like a 3550 or something along those lines?

 If the switch is being used currently as a purely L2 switch, then the only thing that would happen is that you might lose connectivity to the switch itself, unless you are coming from an IP on the SAME subnet as the switch itself (or in the console via serial cable). Basically, with 'ip routing' turned on, the command to set the default gateway is 'ip route 0.0.0.0 0.0.0.0 A.B.C.D', just like in Cisco routers.

Nonetheless, it's ALWAYS a good idea to make changes to production equipment during a maintenance window, just in case!

-Tim
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