Switching

When I read the status messages I find those ones:*May 22 12:14:37.595: DHCPD: child  pool: 192.168.0.0 / 255.255.255.0 (LAN)*May 22 12:14:37.595: DHCPD: pool LAN has no parent.What does it mean? It's not writtent in the DHCP manual... is it a proble...

Hello!I am designing a network for industrial purpose, and I have some doubts designing the Rapid/Multiple Spanning Tree Redundancy.My two core switches are Cisco Catalyst 3750G but all the other devices in the network are Non-Cisco. If you take a lo...

Hi all experts.We have 200 branches and 1 hub. Branches are using 1801 or 1841 routers with advsecurityk9. Hub is using ASR1002 15.0 IOS. Each branch has dual 1mb connectivity with hub. Now we want to optimally use the links, such that, all http traf...

I have interconnected each switch and all 3 are visible.  When I console into the the master I can see and config the other ports on the member switches.  Do I need to configure the members also?  When I rebooted the switches the 3rd switch became th...

Hi everyone, I need to know if is possible to configure one router C1905 as firewall and gateway to VPN IPSec, and authenticating PPPoE over a ADSL modem with my ISP. Thanks a lot!

Hi,I have been noticing amber light on my 4507 sup engine 5, i cheked all modules and couldnt find any faults except for power supply output shown below which sems liitle weird.Is the amber light becasue of mismatching power types?What else can i che...

Hi all,I will be performaing switches IOS upgrade from IPBase to IPService/K9 very soon and currently I have 2x 3750 switches stacking with different models as below;Switch   Ports  Model              SW Version              SW Image------   -----  -...

Hi all.Making a total re-design of existing network at the company i work for.I use a standard three-layer structure (core-distribution-access) to get a normal looking and manageable network.I came up with 7 blocks connected to a redundant core, runn...

Hi!For LAB purposes _ONLY_, I´d to have an old 6500 acting as a "cross-connect patch panel".This means the switch should not run any STP, flood all trafic within any VLAN configured includingSTP BPDUs etc.Anyone know if it is possible to make ab CatO...

Hi Gents,I have following questions Dual SUP vs Quad SUP:1. With dual SUP VSS (one SUP in each catalyst), if one SUP died the other SUP will take over the control plane, does the data plane would be active on both Catalyst in this scenario? 2. Do you...

Hi,I'am very happy with my new CISCO product RV120W, I set up a new VPN connection and it work perfect.Only, I have problems when I want to connect to a webserver (http or https) to to other side of the tunnel ? , other ports work good andeverything ...

HI,while differentiating layer 2 and layer 3 device, it is said that layer 2 is based on mac address and layer 3 on IP.But switch works on IP address, den how can we say that switch is layer 2 device?