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Newbie NAT, DHCP problem

HelloI am a newbie to Cisco. I am trying to setup NAT with DHCP in our office on CISCO 819 router. I am having a problem with DHCP not assigning an IP on vlan1. I cannot figure out what i'm doing wrong. Below is my config and  debug from DHCP. Any he...

Resolved! %STANDBY-3-DUPADDR error log

Hi,I got the Following Error log in my Core switch, need help to figure out what happend?May 13 16:25:38 MAL: %STANDBY-3-DUPADDR: Duplicate address 129.253.144.250 on Vlan20, sourced by 0000.0c07.ac14May 13 16:25:51 MAL: %DUAL-5-NBRCHANGE: IPX-EIGRP ...

Management Vlan Routing issue.

We currently have 1 6509 and 3 4507's setup as layer 3 switches with trunks between them. I am working to create layer 3 connections between them to cut down on broadcast traffic. I have configured new management vlans on each one because the managem...

venturas05 by • Level 1
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  • 34 replies
  • 0 Helpful votes

No serial number found

Hello everybody.Just managed to set up a couple of 3850-48P stacks, every one of these tells me while booting up:% Error! No serial number found for this platform.cisco WS-C3850-48P (MIPS) processor with 4194304K bytes of physical memory.Nevertheless...

3560X GLC-T

I found some GLC-T's on CDW's website for lot less.  How big of a deal it is if I don't use the Cisco GLC-T's which are double in price?  Any experiences with the compatible GLC-T's?

ALIAOF_ by • Level 6
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  • 1 replies
  • 0 Helpful votes

Resolved! 2960S PoE and Phone issues

I have recently replaced some Catalyst 3550's with Catalyst 2960s PoE 48 port switches. Since the replacement I have had some issues with phones that will not have a dial tone. They are powered and the network config shows the correct configuration. ...

Resolved! Spanning-tree changes

This is appearing all over my network and I cannot fingure why. There are PC's plugged into the ports that are giving these events. When this first started happening my whole network was shutting down so I have went through the last two days adding "...

Resolved! 877 DNS problems

Hello,A cisco noob here. At home I have a small test lab with a 877, this 877 is connectect with the fa0 to my service provider router. I want to configure a DNS server, but when I do I can ping to a DNS name from my 877 but nog from my client. I hop...

MST Design - DataCenter vs LAN

Hello, I would like to split up the MST into 2 instances, one for my datacenter and the other one to the rest of my lan. I want to limitate STP movement in my DC.In my DC, I have a Catalyst 4510E, Nexus 5010 and a few other switches (2960G)...  Do I ...

Resolved! Router and Switch help!!

Hi I am a networking student in my first year and i have to build a network using packet tracerI have the network built and one networks ip address is 192.168.1.0 with 18 computers and then i have another network 192.168.2.0 and within each network i...

Allo only show command

I've just created a local user on router but whoever uses that account I  would like them only have access to show commands and that's all no  other commands. Can someone please guide me on how to accomplish this?Thanks!

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