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Hi all,This may be a silly question, but how do you configure HSRP with a link-local IP address? The switches that I'm working with are 6509s running IOS version12.2(33)SXI3 (so they don't support using a global IPv6 address as the standby IP).This i...
Hi all,Yesterday I discovered quite a bit of unicast flooding going on in one of our data centers. This particular data center is host to over 1,000 physical test servers with several thousand VMs, plus F5s, SAN, and several hundred switches, so I ex...
I have an interesting problem. I have a 6509 that I'm trying to swap the GBIC on. The switch is already using a GLC-SX-MM GBIC and it is up/up and passing traffic, but we are getting some errors and suspect it may be faulty.I went to replace the GBIC...
Hi folks,I have a 6509 that had two different modules powercycle themselves about 18 hours apart. It could be coincidence, but I've never had it happen before so I suspect it's related. Unfortunately I haven't had any luck so far identifying a root c...
Thanks for your comments Adam, I'm glad you got your problem sorted out.I had forgotten about this thread, but I figured I'd go ahead and update it with my solution. To explain the scenario, the 6509 that I was working with was connected up to a patc...
Ahhh that would cause an issue . I did the same thing the other day. I couldn't figure out why a load balancer could talk through my firewall, only to remember that I had stripped out the routes in order to start over from scratch and forgot to add t...
No RFC says that IPv6 only works sometimes when using a non-/64 subnet. TCP/IP either works or it doesn't, it's not intermittent. Certain features are designed around using a /64, but you can use whatever you want if you don't care about those things...
You can use other subnets besides /64 on an ASA. IPv6 uses /64 for neat features like auto-discovery, but you can use anything you want if you don't care about that. I usually use /80s and /96s (all taken from a subnetted /64) for testing. I haven't ...
Hi Rais,I understand all of that, but that doesn't answer the question of why it's not working with IPv6. My point with IPv4 was only that these two switches I'm testing with have HSRP working fine with v4, but not with v6 (using the exact same confi...
