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so I am studying to take the ensld 300-420 exam and am using the official cert guide 2nd ed. as my primary resource. moving through the IPv6 section it states that for eui-64 addresses you just split the mac in half and insert FFFE. this is a pain be...
hello all,I teach CCNA classes as part of an associate's degree program. Our program just moved to a new building. We discovered the hard way when I asked a student to set up our rack mounted UPSs that the L5 style outlets provided by the contractors...
I am attempting to wrap my head around NDP collecting default router information for automatic addresses. this makes perfect sense in a network that only has a single gateway, however I can find no information regarding how a device selects a default...
I run a small lab and am experiencing an issue with WIC-2T serial modules on a 2911 router. I have referred to Cisco's documentation and the 2911 is supposed to support the WIC-2T, and is running IP BASE 15.2(the minimum is IP base 15.0). for whateve...
hello all,
I am running into an odd issue where I am attempting a dual-stack environment with a home lab. the devices are 2811 routers running various versions of IOS 12. when I configure IPv6 addresses on interfaces, I get warnings that say that any...
a student managed to locate the problem. Cisco automatically disables SFP modules that have not been approved specifically by Cisco. in order to use them, you must enter a pair of commands which may void your warranty in order to activate the SFP mod...
that is not an option, I do not have a site license or access to other IOS Images. also the HWIC works in other routers running the exact same IOS version and license level without issue.
I should have been clearer. I am using FC30 as the basis for a larger block. the actual block range starts at FC30:1111::FFFF:0080/125 I've tried several different subnets, ranging from 0080 to 00B8, and various addresses from within those nets.
interesting, but not at all surprising. thank you very much for the information. I will definitely not be implementing an ASA into my network given this revelation.
