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I was told to implement 100% end-to-end redundancy (from the distribution switches to the servers). We have nine racks of servers for this project. Each rack will get a primary access switch, and a secondary access switch. That is a total of 18 access switches. These switches will all have...

Hello, We have a hub and spoke frame relay network. All routing is static. Each remote end has one physical circuit installed. Our frame relay provider has it set up so each circuit has TWO DLCIs. One PVC is currently going back to the "hub", or the main distribution router. The other PVC...

Hello, I am curious to see what everyone's best practices are regarding VLAN 1. Does anyone use it? "Disable" it? Avoid it? I know there are some features that utilizes VLAN 1 (such as CDP), and I am curious to know if this will effect any of my services. We have a Solarwinds Orion server...

Hello all, I work for a company that is trying to provide internet services for a garden style apartment complex. The complex is about 10 different buildings, scattered within a 3,000 foot radius. The buildings are about 50 units each, and are no more than four stories high. We will have a...

I have a network right now with about 100 residential users. Unfortunately, I was only able to obtain a /28 block of public IPs....so I implemented NAT on my core router (7206VXR) to accomodate everyone. The problem is - my customers have been killing this router's NAT table. Last night one...

Is the Cisco default on a router = weighted fair? Just wanted to confirm. Thanks...

Hello all. I am in a debate with a colleague as to how many CRCs are acceptable, at least to the point before it starts degrading system performance. Obviously NO CRCs are acceptable in a perfect environment, but right now we have a max of around 5% on one of our links. The link is basically...

Hello all. I have been troubleshooting this problem for over a week, but I have little to show for. Unfortunately, this problem has been affecting our customers, so I consider this one to be mission critical. I will be forever in debt to the one that shows me the light on this. First off, a...

I have a 2621 with a T1 circuit that is being used by multiple customers. What I would like to do (for the sake of saving bandwidth), is limit each individual customer's upload speed (all traffic types) to 256K if possible. I DONT want to take down the speed of the actual circuit itself, I just...

Hey guys, I noticed on my router that is doing NAT that there are an unusual amount of "misses". My hit/miss ratio is like 4:1, which seems awefully high. I am trying to troubleshoot this, but have little resources to work with. Does anyone have any experiences with a lot of misses? I am trying...

For some reason, I can not configure NTP on this 1721 router to save the life of me. I could have sworn you can use NTP on a 1721, because I have seen it on configurations in the past. When in global configuration mode, it is not showing NTP as a list of commands. Ive tried looking throughout...

I am having difficulty trying to get two point-to-point T1 sites connected with each other. The main office site is using a 7206VXR with a PA-MC-8T1. The remote site has a 1721 with a WIC-T1-DSU. Currently both the interfaces are up, and the line protocol is down. Both routers are sending out...

Hello all. I have a 7206VXR with two outbound (WAN) T1 interfaces. Traffic going out to the internet is load balanced through these two interfaces. There will be multiple LAN links coming into this router, all needing to be natted. My question is, if I am running NAT on this router - do I...

I just purchased a 7206VXR with a PA-MC-8T1. This is my first time using an eight port T1 adaptor, so this could be something stupid. I just found out right now, that the PA-MC-8T1 has reached its EOL almost a year ago. I didnt bother checking up, because it was sold in a "bundled package" with...

Hello all, I apologize for being absent....Ive been out of town for a while. Anyways, I noticed on my dynamic NAT table of my DIA (which happens to be a 827) router an entry Ive never seen before. The inside address is one of my "private" servers located off the ethernet side of this router...

Hello all. I have a Cisco 827 ADSL router. Recently, we keep losing our connection out to the internet. It is completely random (like once a day or so), and so far I am only able to fix the problem by rebooting the router. After looking at the logs and doing some debugging, Ive noticed that...

Hello all, this was originally in the Cisco routers forum....but perhaps it can be answered in here. I understand you can create multiple address pools on a Cisco router. My question is, how do clients know which pool to grab an address from? Lets say if I have two Cisco edge routers (A and...

Hello all, I have my tape drive set up to run an "unattended backup" every night. When I come back the next morning, I notice there are no messages at all to confirm if the backup was successfully performed or not. When I go to the Scheduled Tasks under the System Tools feature of my...

My DSL internet access was intermittently going up and down today. More specifically, I have an 827 router - and I noticed that the ATM interface is "flapping". It is totally sperratic, and is not time sensitive. One second it is up, the next it is down. I have ran debug commands...

You would think that with the wealth of information on Cisco's web site, it would be easy to find the latest IOS versions available. Unfortunately, after an hour or so of running around in circles - I have only came up a few guesses. The biggest problem is probably because I only have a guest...