About Dennis Beul

Dennis Beul · 03-11-2015

Hello,we want to purchase BE6K servers for our lab and use the Cisco VM planning tool (www.cisco.com/go/vmpt) to check possible VM deployments for the new platforms. On current BE6K-M3 servers, there are hard caps for the maximum number of UC applica...

Dennis Beul · 07-02-2012

Hello,I noticed a strange behaviour on an ACS 5.3 server regarding the Active Directory connection: The ACS is connected to the domain, the connection is established and rule-matching against the AD works fine. But when I hit the "test connection" bu...

Dennis Beul · 07-02-2012

Hello,I have a problem with the time synchronization via NTP between a Catalyst 2960 and Catalyst 6509. When I configure the 6509 switch as a NTP reference on the 2960, it does not synchronize with the 6509's NTP server. There is no reachability or A...

Dennis Beul · 12-20-2010

Hello,registration of some 9971 phones in a fresh CUCM 8.0 environment fails constantly. The phones ran without problems in another CUCM 8.0 before and have the "old" config still active (because they never registered to the new cluster). The log ...

Dennis Beul · 12-01-2010

Hello,I looking for a solution to the following scenario:Our customer uses the prefix 59 as PSTN access code, so incoming calls from PSTN are prefixed with the 59 to allow direct callback from the call history. This is done in the device pool (Incomi...

Dennis Beul · 08-11-2014

Hi there,you want to place the 1700 router in your LAN behind your Actiontec router, did I get this right?So, you need to configure your router interface connected to the Actiontec with IP network 192.168.1.0 (i.e. IP address 192.168.1.2) and a stati...

Dennis Beul · 08-11-2014

Hi there,please refer to the following white paper:http://www.cisco.com/web/partners/downloads/765/tools/quickreference/routerperformance.pdf First, be aware that the answer to your question strongly depends on your individual environment, especially...

Dennis Beul · 08-09-2014

Hi Tom,from a quick glimpse, your config seems good. As only 3 testing hosts are affected (according to your schematic), did you already verify that your issue is not at the host side, i.e. missing default gateways or desktop firewalls blocking ICMP ...

Dennis Beul · 08-09-2014

Also, this could be ARP-related, so check your host's ARP tables ... Do you see incomplete ARPs in the cache?Dennis

Dennis Beul · 08-23-2012

Hi guys,after weeks of figuring out this issue with the Cisco TAC we finally solved the problem. I just want to share the solution with you - it was an IOS bug, plain and simple: NTP packets received but ignored by the NTP processhttp://tools.cisco....

Member Since	‎06-09-2010 11:50 PM
Date Last Visited	‎06-17-2019 11:46 PM
Posts	23
Total Helpful Votes Received	15

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BE6000H - Max applications limit removed for new M4 server?

ACS 5.3 AD connection test

NTP server problem

9971 does not register - trust list update failed

caller number manipulation scenario

Hi there,you want to place

Hi there,please refer to the

Hi Tom,from a quick glimpse,

Also, this could be ARP

NTP server problem