We are a small hosting company wiht 4 webserver and a mailserver. So far we have been using home-brewn iptables-based linux firewall. But soon we will outgrow the capacity of the firewall we have. To...

We are useing Cisco 3500 switches with fiber backbone. They are setup as VLan subnets. All of the browser information, in some of the subnets, are not being sent to the Domain Master Browser. If I...

Greetings, Last 2 weeks I noted one Nevada USA based company has been hammering us with TONS of spam each day. The IP is identifiable. Is there a comand that will block this IP range from entering...

Hi all, when I power cycle my 1721 loses her configuration. The strange thing is that (after cycling) I do sh conf , and there is my conf. But I will not start up with it. What is my problem ? of...

Looking at my buffers, I would think I would like to increase the permanent header buffer to compensate for the 137. How do I increase the header buffer? I know how to do other buffers, but cant...

Hi, I was wondering if the PA-2FE-TX is hot swappable in the 7206VXR with IOS IOS (tm) 7200 Software (C7200-JS-M), Version 12.2(19a). I know the documentaion indicates it is, but curious if anyone...

I have a Motorola Broadband Router, model WR850G. I am looking for a PCMIA ethernet card to use with my Win98SE based 133mhz laptop. I can't use a wireless card because the laptop's specs don't meet...

Today I received a call from user that suddenly got completely changed static NAT entries in his 831 (12.3T+FW) router. Also inbound ACL has been created to "match" new static NAT entries that are...

Hi, I'm using Cisco PIX and Cisco VPNClient client to provide remote access to my company's network. I'd like to provide various access privileges (ACL) depending no the username that logs with...

I have the following configuration on one of the Cisco 2503 routers in my router lab. It appears that IGRP is not functioning on one of the router/switches. I have 4 2500s in series using Cisco...

Hi there I have configured a radius server to return ACL filter rules to a Cisco network access server. This is done by adding Cisco-AVPair attributes to the radius user profile. The ACLs are then...

Hello, Where could I find documentation for all CISCO 3550 SNMP traps and SYSLOG messages, with detailed description? Thanks Marco R.

Folks, I am currently trying to accomplish a configuration that I'd like to call a one-side NAT which I am not sure if it's possible anyway. Here's the setup: Inside Server-----Cisco----Outside...

I have what should be a relatively simple problem that I am having trouble with -- I am tapping three separate GigE links which I want to aggregate in a single router-switch and route by destination...

Hi all, I have two HQ sites (HQ1 and HQ2), with CE's advertising SAME network (i.e. 2.2.2.0/24) to their PE (single VPN). If I would some "spoke" site use HQ1 to reach 2.2.2.0/24 and HQ2...

Hi all! Does anyone no how to restrict athorization on routers to selected account? I have several routers and one special account which i made to give an access to one special router. Can i forbid...

Go to this link http://www.geocities.com/baristhasharma/mimicvlab.html I have tried it and benefitted a lot. So wanted to share my experience. It is just $99 and worths many hundreds dollars. Has...

Lets say I control the following IP blocks: 192.168.1.0/24 10.0.0.0/23 Lets say I have two uplinks (1.1.1.1 and 2.2.2.2) to two different providers. How can I stop all hosts on 192.168.1.0/24 from...

Im about to purchase another switch. My root switch is a 100M multilayer switch with QoS configured to give priority over to SQL traffic. Currently I am load balancing 2 x NICS in our SQL &...

Hello I am struggling to set up an automatic ISDN failover on a 1721 router with a dynamic ADSL connection. The only workaround we have found, it's with a couple of scripts that manually bring...