About jdcardenas

jdcardenas · 07-12-2015

Hi, We have deployed 2 identical fabrics in 2 different locations, both of them have an external connection to a pair of C4500 via VPC The VPC to the C4500 has 22 VLANs allowed on the connection, it was working fine during staging and when the device...

jdcardenas · 04-29-2015

Hi there, We are currently building a VSS and our design has L3 subinterfaces however we have hit a major wall while trying to do the following Create physical subinterface on VSS switch – Fail Create port-channel subinterface on VSS ...

jdcardenas · 01-07-2014

Hi All,I have been trying to get this right for a while now and can't find documentation or anyone having the same issue, so probably I'm missing something.Here is the issue: Some clients are using Anyconnect 2.5 due to OS requirements and some other...

jdcardenas · 04-11-2012

Hi,I have been searching everywhere for information about best practices to harden Cisco devices when IPv6 is implemented, I have found many documents showing possible threats however some of them are more than 3 years old and don't give a good examp...

jdcardenas · 07-15-2012

Phil,I think we are in contact already, however I though it is important to share this information here:Nexus by default applies CoPP and gives you the option to select between 3 different levels of protection Not sure if you have modified the defaul...

jdcardenas · 04-17-2012

One More question ... the list is applied as a prefix list, which is OK, however I am not sure if the same prefixes can be used to let's say block connections on a public interface; i.e the IPv4 list above doesn't permit connections from private netw...

jdcardenas · 04-15-2012

One more Question: Is there any IPv6 ACL similar to the ones exisitin in IPv6 to harden an Internet connection? i.e. wtih IPv4 you can have deny ip 10.0.0.0 0.255.255.255 anydeny ip 126.0.0.0 0.255.255.255 anydeny ip 127.0.0.0 0.255.255.255 any...

jdcardenas · 04-15-2012

Thank you Sean, however it seems there is no general guidance as it is for IPv4, I gound a couple of good examples on your links though

jdcardenas · 03-17-2010

Hi guys,I´ve been having the same problem whe trying to bring up a link between a gigabitethernet port using the UTP connector and a fastethernet port on a Huawei SW...the only way it works in full duplex /100 is when both sides are auto.any idea wha...

Member Since	‎03-17-2010 09:10 AM
Date Last Visited	‎06-27-2018 12:18 AM
Posts	13

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User Activity

VPC Missing VLANs

Subinterfaces - hardware limitation on catalyst 4500-X

Anyconnect 2.5 and 3.1 on C1841 - Sequence issues

IPv6 hardening Best Practices?

Jumbo frames dropped on Nexus7000

IPv6 hardening Best Practices?

IPv6 hardening Best Practices?

IPv6 hardening Best Practices?

Re: duplex mismatch problem