About david.mitchell

david.mitchell · 04-04-2013

Hi All,If I have a distributed LAN environment whereby I have DHCP servers on one VLAN and Clients on another and the Client VLAN is spread out over a number of access switches, how can I implement DHCP snooping without trusting the uplinks on the L2...

david.mitchell · 02-22-2013

According to the Cisco documentation below • When configuring Layer 3 EtherChannels, you must manually create the port channel logicalinterface first (see the “Configuring Port Channel Logical Interfaces for Layer 3 EtherChannels” section on page 12-...

david.mitchell · 02-12-2013

Good afternoon all,I have two 6509s both with single FWSMs running in transparent mode with bridged Inside and Outside VLANs.I have my Core A set to STP priority of 8192 and Core B set to 16,384 to make Core A the root for all VLANs.Problem I have is...

david.mitchell · 02-08-2013

Hi All,I have two 6509s with a single CSM in each set up for FT. No changes have been made to the configuration recently but I have noticed the following EMs occuring in the logs. Both logs are from the same period of time so you can see what is ha...

david.mitchell · 01-17-2013

Good afternoon all,Nice easy one for someone I'm sure.....I have only remote access to network kit and therefore cannot test Console access. I have a switch with the following config (Extract)!Username Admin password Password123!aaa new-modelaaa log...

david.mitchell · 04-04-2013

Thanks Paul, this makes sense (I forgot that all switchports would be Untrusted for DHCP by default!)With regard to Option 82 and how it works. I understand as mentioned briefly earlier, that when using IP Helper Addresses on VLAN SVIs, Option 82 is ...

david.mitchell · 01-18-2013

Thanks Michal,So even with the login authentication cisco on the line console the aaa authentication still refers login attempts to the default list. Thats what I was hoping for as it proves that the current config on line con 0 login authentication...

david.mitchell · 01-18-2013

Thanks Michal,I think the lab would need to include aaa authentication default group tacacs+ local as well in order to see if the console authentication uses that as a fallback to the failed line console command.Outputs as requested:line con 0 ex...

david.mitchell · 01-18-2013

Good Morning Michal and thanks for the reply,Unfortunately I don't have the required access rights to view the hyperlink you have attached:(However I know what you are saying and that is my confusion also.If I was configuring this using the Line Con ...

david.mitchell · 10-23-2012

Thanks for the reply Alex, I know this is a tricky topic and not the most exciting to explain......Unfortunatley I still feel like I am in the same boat with this as your examples have further solidified what it is I have been reading from the books....

Member Since	‎05-04-2012 07:57 AM
Date Last Visited	‎08-18-2017 04:03 AM
Posts	20
Total Helpful Votes Received	15

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DHCP Snooping & Option 82

Etherchannel Layer 2

STP Root Bridge is pointing at FWSM

CSM FT Heartbeat / Keepalives failing

AAA issue - Line Con 0 = login authentication (password)

Re: DHCP Snooping & Option 82

Re: AAA issue - Line Con 0 = login authentication (password)

Re: AAA issue - Line Con 0 = login authentication (password)

Re: AAA issue - Line Con 0 = login authentication (password)

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