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Hello, Cisco Community!I’m really happy to share that I’ll be hosting the Cisco Community Lab Series, a brand-new hands-on learning journey designed to help you build practical networking skills step by step.Every Thursday at 8 PM EST, I’ll post a ne...

Hello, I have a 2621xm Router and a 2950 (24 port) Fa switch. I am having trouble getting outside to the WAN using the switch, when I run a ping test while connected to the console cable on the router, it works fine. DHCP works fine for the Vlans and...

Resolved! router dhcp lease

I have a network with a few different vlans, and a dhcp server setup on the router. The L3 switch is the default gateway for all vlans with interface vlans. with th eip helpder address assigned to them. All host computers are assigned to their respec...

A company with a flat network has an estate of 2960 switches. They also have Sophos UTM 425 devices with 4 spare ports.They need to implement VLANs with ACLs to segment the network. Is it possible to implement the ACLs on the switches? Or would the V...

Parlance_ by Level 1
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  • 9 replies
  • 0 Helpful votes

Dear Friend,I need to understand the packet flow of the below diagram.I have configured MPLS on R2,R3 and R4. And IBGP is configured on R2 and R4. Now I am able to reach from R1 to R5's Loopback address. I need to understand the packect flow from R1 ...

Hello. Thanks in advance for read this.It must be something very basic but somehow I can't see it. I have a couple routers connected as follows (simplified layout as there are way more routers on the FR cloud):[Internet] <-- ATM --> [Router_A] <-- Et...

HQuest by Level 1
  • 2567 Views
  • 3 replies
  • 0 Helpful votes

Resolved! PAgP

Does the PAgP protocol sends out the BPDU's every 30 sec's ? If yes, what are they meant to?And as per my understanding PAgP has 3 modes:1. Auto 2.Desirable 3.OnAuto makes a port to listen for PAgP messages.Desirable generate PAgP messages, by defaul...

hi all ,just simple questionassume i have    inside==ASA====outside========intnetassume outside public ip is x.x.x.xasusme i made a portforward on outside interface ,assume my lan is 10.10.10.0/24assume to reach my server 10.10.10.2 i need to go x.x....

Dr.X by Level 2
  • 1990 Views
  • 18 replies
  • 0 Helpful votes

I form a VSS between two 6509-E chassis with sup 720. I have WS-X6548-GE-TX module in each chassis. After configuring the VSS i found that this module is not compatiable with VSS. Is there any way i can use these modules ? any upgrade or something ?P...

mali786 by Level 1
  • 1718 Views
  • 4 replies
  • 0 Helpful votes

DWDM-Transceiver for Nexus55xx ?We need an Nexus-Chassis (L3!, capable for OSPF) which supports DWDM-Transceiver (10G) for interlinking with ONS15454-CardIs there any existing/new/upcomming NX-OS which supports this DWDM-Transceiver for Nexus 55xx ??...

rnolden by Level 1
  • 958 Views
  • 2 replies
  • 0 Helpful votes

Hi guys, What could be the problem if I see this logs from my core switches (cisco 6509)%SPANTREE-SP-2-LOOPGUARD_BLOCK: Loop guard blocking port Port-channel5 on VLAN00021%SPANTREE-SP-2-LOOPGUARD_UNBLOCK: Loop guard unblocking port Port-channel5 on V...

Hi all, thanks for taking the time to read my post.I’m looking for a bit of advice on how to configure the router. I’ve found plenty of posts relating to bridging mode for ADSL but none for VDSL service.Scenario BT infinity service using home hub 5 (...

I am connecting a 4503 to a 2950.  I have native Vlan 1 between them on the trunk.  On that vlan 1 the subnet is 172.16.138.0.  The default gateway on the 2950 is 172.16.138.1.  There are devices attached to the 2950 that are all subnet 172.16.98.0. ...

bryanrobh by Level 1
  • 700 Views
  • 2 replies
  • 0 Helpful votes

All,If I had a dhcp database on a server and configured on the switch as a tftp location, what would the outcome be if one person on switch 1 moved to another jack on switch 3. Both ports that the user connects to on each switch are configured as unt...