Switching

Hello group, Am a Amateur Radio Operator and working on a project to link radios over internet.  I purchased a Cisco 1841 router second hand .  Unit works fine but While trying to configure STUN commands I get errors. My research shows that I may ne...

I cannot find an upgrade guide for the 6880-X to save my life. The only thing I have found is this from 2014 for 6500 switches: http://www.cisco.com/c/en/us/support/docs/switches/catalyst-6500-series-switches/117564-technote-issu-00.html Can I use ...

Hi Security is not my best topic so I have a slight Natting dilemma. We are allowing 2 supplier external IPs (group External_Suppliers) access to our internal domain controller (10.10.10.1) on port 636 (ldaps). 10.10.10.1 is natting to 27.2.2.25. So ...

What is L2 and L3 Static and Dynamic Multicast? 

hi i have a cisco router 2900 with 1 subinterface, but hosts from the other interfaces ping fail to hosts in this subinterface attached my configration ! Last configuration change at 09:11:50 UTC Tue Sep 15 2015 ! NVRAM config last updated at 09:12:...

                   OSPF normally only comes with IPservices image and not IP Base image. The 3560-C series data sheet says that it only suport IP Base image, yet it mentions that support for OSPF in included. Are there any restictions in the OSPF sup...

Hi, I have two 2960X (WS-C2960X-48LPS-L) connected via stack (C2960X-STACK) and they doesn't recognise each other. The switches have a stack module and they appear correctly in the sh inventory. I have changed stack cables and stack modules for a new...

Hello, I have a problem with Cisco ASR1001 MGMT port (GigabitEthernet0). The port is down and I do not know why. Interface configuration : interface GigabitEthernet0 vrf forwarding Mgmt-intf ip address 10.30.10.30 255.255.255.0 negotiation auto!vrf ...

On our campus network, we are currently using EVN between our core and distribution routers.  We would like to add IPv6 into this setup however I can't find much of any documentation on doing this.  All I find is that IPv6 is only supported in the Gl...

It's it normal to have layer 3 ACLs on an access switch?  The ACLs are being used for QOS policys (ie voice, video) that are then applied to the interfaces.  My question is, isn't everything at this switch going to be layer 2?   For reference here i...

I have a client that does not want to do this on his ASA, he instead wants this setup on a 3850 switch.  They basically are trying to create a DMZ vlan, VLAN 10.  The servers are on VLAN 5.  They want VLAN 5 to have full access to VLAN 10, but VLAN 1...

Hello, I am trying to understand exactly what is happening here. Can someone provide a brief overview i..e is signalling and Presence traffic being exceeded even though it has exceeded it's limit, but voice traffic is being dropped ? Thanks kindly fo...