Showing results for 
Search instead for 
Did you mean: 


Forum Posts

Resolved! Boot system and config register question

Hi All, I am hoping if someone can help me understand the boot system command.I have just gone through the config of 6500 switch and i found that there is no path to the boot image6500#show bootvarBOOT variable =CONFIG_FILE variable does not existBOO...

Output Hold Queue Drops

Hello.  I am working with a 3560G switch that is dropping packets for the output queue.  The only traffic on the switch are UDP mutlicast video streams.  The confusing thing was that on the port dropping the packets, the outgoing bit rate was only ab...

Mike Assel by Enthusiast
  • 3 replies
  • 0 Helpful votes

Resolved! Cisco 1841 Setup (Totally Lost)

I've recently acquired a Cisco 1841 from a school that was upgrading their network. Although, I have a computing background, I am totally new to networking. I can't seem to get this thing set up. I can't find a manual online, just a brochure and a fe...

Watchlord by Beginner
  • 10 replies
  • 0 Helpful votes

Resolved! Configuring STP on 3548XL

I am using a cisco WS-C3548-XL running IOS (tm) C3500XL Software (C3500XL-C3H2S-M), Version 12.0(5)WC17, RELEASE SOFTWARE (fc1).In the documentation I see the command to change which version of spanning-tree is     (config)#spanning-tree mode xyzOn t...

rn.becker by Beginner
  • 3 replies
  • 0 Helpful votes

Resolved! Redundant Supervisor Engine 720-3B reloads

Hello everybody.There is a Cisco Catalyst 6513 in my office. Recently we decided to setup redundant Supervisor Engine 720-3B. When we did it, its became STANDBY COLD, and then it reloads. IOS is equal on both supervisors. It must be STANDBY HOT (SSO)...

Resolved! VLAN Routing on switches

HiI have attached an image of my network.I want to ping at Switch 4 (IP: from the Switch 1. I can ping  all the VLAN/IPs on switch 3 from Switch 1. Switch 3 can ping Switch 4. But can't ping from switch 1.What configurations is re...

hislam by Beginner
  • 2 replies
  • 0 Helpful votes

Cisco 1841 Static Nat Mapping issue

I guess i am just getting old and forgot how this works, or i have an IOS load with an undocumented feature in it.A customer of ours wishes to have their exchange server appear to the outside world on a seperate IP address as their public pool addres...

ralphw by Beginner
  • 5 replies
  • 0 Helpful votes

Simple issue on 3750 using DHCP?

I have a 3750 stack setup as DHCP server on two vlans. I get an ip and default gateway when plugging into a port configured. The problem is this:I plug into vlan 20 and get an IP of 10.1.20.x and default gateway of can ping and I c...

martens72 by Beginner
  • 4 replies
  • 0 Helpful votes

walk on lan issue

When we tested this walk on lan with the below config on primary core switch, the solu working but if we put the walk on lan tool on separate server other than the dhcp server , then it is not working.we were using walkonlangui.exe and walkonlanmonit...

Resolved! PC not getting IP from Switch

Hi Everyone,I have 2 switches running as HSRP and both have DHCP  config  on them.Both these switches have connection  to 3rd switch where PC is connected.Connection between HSRP switches and 3rd switch is not trunk it is access port only.VLAN 10 is ...

mahesh18 by Frequent Contributor
  • 24 replies
  • 0 Helpful votes

I can Ping the Net, but cannot access the Net

Hello Friends,I have a new Cisco Router 1841. I believe this is the OS name ( c1841-ipbase-mz.150-1.m6.bin ) This is my first Router to configure. Now, PCs in the local network can ping or tracert But, none of the PCs of the local network ...