About scottchang

scottchang · 04-15-2014

Hi All,We have a Nexus 5548up IOS 5.0(2)N1(1) with a FEX (2248TP)5548 has 1 TenG connection to 6509 and also 2 x 1G RJ45 connections to 4948. Both connections are on 5548.4948 also connect to 6509 so there is loop but block by STP.Got a weird problem...

scottchang · 02-04-2014

Setup WLC 5508 to Eval ACS 5.3 and set ACS external DB to AD.It's working fine with ASA VPN client ( VPN client to ASA then authenticate to ACS with AD)But when testing wireless authentication from WLC 5508 to ACS 5.3, it couldn't get thru and kept s...

scottchang · 10-17-2013

Hi,I am not dedicated voice guy but got task to remove server from Disaster Recovery System Scheduler because it keeps sending alert email as below:Backup process failed. Investigate sftp server settings. Reason : DRF was unable to backup component P...

scottchang · 10-03-2013

Hi All,We are planing replace 6509 to 4900M+Nexus5548 due to A/C and Power issue. We have two 6509s and plan to use two 4900M (20xRJ45 and 8x10G modules) + two Nexus5548 to replace it. (4900M Layer 3 and do HSRP, 5548 for 1G and 10G layer 2 connect...

scottchang · 08-23-2013

Hi All,Found a strange situation on our ASA5540 firewall :We have couple Site to Site VPNs and also enable cleint VPN on the ASA, all are working fine. But found a Site to Site VPN is up and running without crypto map configuration. Is it possible ?I...

scottchang · 01-19-2017

Thanks all, this article helped me. "ip tftp source-interface" made it work.

scottchang · 07-07-2014

Hi Abhajha, Thanks for the reply. I upgraded firmware from 7.3 to 7.6 then it seems fixed the problem.Also saw there is an known issue in 7.6 release but the issue is still open and not solved yet.Glad it works for my WLC but it definitely some probl...

scottchang · 07-07-2014

I got same problem in WLC5508 with AP2602 (Flexconnect)Looks like when session timeout is expired, AP put the client to de-authenticated.But Client didn't know and the wireless status still show "connected"Couldn't ping anywhere.Below is the debug fr...

scottchang · 04-16-2014

Hi Reza,Thanks for the reply.I know it's not recommended. But in some situation we have to connect switch to FEX and I did some research as discussion below:https://supportforums.cisco.com/discussion/11281941/connecting-switch-2232-fexActually I have...

scottchang · 04-15-2014

Hi Reza,Because hosts are in different racks so all hosts connected to top cisco switch then one uplink to 2248.Sw1 and Sw2 are Cisco switches. SW1 is fiber uplink to 5548, SW2 is Copper uplink to 2248. Address is IPv4. (10.16.200.x)5k is configured ...

Member Since	‎11-05-2009 02:26 PM
Date Last Visited	‎08-31-2018 12:01 AM
Posts	22

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Nexus 5548up connection issue (Hosts can ping but can't ssh)

WLC to ACS5.3 got error "24444 Active Directory operation has failed"

Unregister server from DRS

4900M+Nexus 5548 to replace 6509

Site to Site VPN working without Crypto Map (ASA 8.2(1))

Thanks all, this article

Hi Abhajha, Thanks for the

I got same problem in WLC5508

Hi Reza,Thanks for the reply

Hi Reza,Because hosts are in