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- Open ports on Cisco 871W
- Hi,I'm new to the world of Cisco. I recently bought an 871W router to become familiar with cisco products. Thanks to George Ou's template and David Davis' articles I was up and running in no time. I had to modify some things in order for it to...
- Tags: TCP/IP, NETWORKING, Network technology, SynapsE_z, IP, TCP, static tcp, router, Cisco Systems Inc.
- Discussion threads 2007-11-09
- Cisco Config w/NAT .. not doing its thing
- hi all, maybe someone here can assist. trying to get natting on my cisco 1700 series router to work but its not. been 4 days at this and still nothing. just trying to host my own website. online remote scans are saying that port 80 (and all ports i am...
- Tags: TCP/IP, NETWORKING, Network technology, chuck_v@..., Cisco Systems Inc., TCP, IP, static tcp
- Discussion threads 2007-08-30
- tcp rst sent to incoming conn requests.
- i recently deployed a 2811 with 102 12.4 advsecurity ios. i configured an e1 internet with 16 time slots.then i configured Nat for application server and internal hosts to access internet through SDM 2.4. my internal host can access internet. everything is fine.but when clients from the intenet send tcp...
- Tags: TCP/IP, Network technology, NETWORKING, raza00@..., IP, TCP, static tcp
- Discussion threads 2007-08-06
- Configure static NAT for inbound connections
- Someone recently asked me how to configure Network Address Translation NAT so that computers on the Internet could access his internal Web and mail server through his Cisco router. This requires configuring a static NAT translation between the dedicated public IP address and the dedicated private IP address. Here's how...
- Tags: router configuration, Remote Access, Networking, NAT, David Davis, Cisco Routers and Switches, Cisco
- Blog posts 2007-06-06
Additional Resources
- Performance Evaluation of Scalable TCP and HighSpeed TCP Over Geostationary Satellite Links
- This paper analyse the performance in a satellite environment of two recently proposed modifications to the TCP's congestion control algorithm, namely Scalable TCP and HighSpeed TCP. These two protocols, originally designed for high-speed backbone links, appear to be major candidates for replacing in the next-generation Internet the current congestion control...
- Tags: Performance, Environment, Performance Evaluation, TCP, Satellite, Satellite Environment, Tcp/Ip, Networking
- White papers 2005-01-27
- Understanding TCP Over TCP: Effects of TCP Tunneling on End-to-End Throughput and Latency
- TCP tunnel is a technology that aggregates and transfers packets sent between end hosts as a single TCP connection. By using a TCP tunnel, the fairness among aggregated flows can be improved and several protocols can be transparently transmitted through a firewall. Currently, many applications such as SSH, VTun, and...
- Tags: Latency, TCP, Tcp/Ip, Networking
- White papers 2007-11-16
- A Survey of TCP Over Ad Hoc Networks
- The Transmission Control Protocol TCP was designed to provide reliable end-to-end delivery of data over unreliable networks. In practice, most TCP deployments have been carefully designed in the context of wired networks. Ignoring the properties of wireless Ad Hoc Networks can lead to TCP implementations with poor performance. In order...
- Tags: Advertisement, Network, TCP, Survey, Tcp/Ip, Networking
- White papers 2005-06-01
- VPN & Static IP
- We have use cisco vpn client 4.8 & 4.0 in our org. We are coming across an issue that is unexplainable and i would like to know if anyone out there has an explanation. We have 2 connections both being in 2 different locationsstate. We are attempting to connect to...
- Tags: IPSec, TCP/IP, VPNs, NETWORKING, Network security, SECURITY, blanca.rosario@..., VPN
- Discussion threads 2007-03-28
- TCP/IP settings
- I have a laptop on my domain that will not retain the static Gateway and DNS IP addresses. Every time it is shut down, they are dumped, causing me to have to re-install them daily.Reserved IPIn active directory you need to make sure that the static IP you want for...
- Tags: Notebooks, Network technology, NETWORKING, michael.frongillo@..., laptop computer, Thanks!, TCP/IP
- Discussion threads 2007-10-29
- Remote Assistance
- Does anyone know of any kind of remote assistance software that would be userful when troubleshooting with a user that is not on the same network as me. I know of the netmeeting, remote desktop, and remote assistance. With all of the listed titles, it seems that they...
- Tags: TCP/IP, NETWORKING, Desktops, lsmith@..., TCP, TCP port 3389, RDP, network, software
- Discussion threads 2007-05-10
- An Analysis of TCP Through Simulation
- This paper is an analysis of TCP and its variations through the use of simulations. The NS-2 network simulator was used to help understand the behaviors and characteristics of TCP variants. Two different experiments were set forth. The first varied different load conditions; the second varied queuing algorithms. The TCP...
- Tags: TCP, Analysis, Tcp/Ip, Networking
- White papers 2006-10-28
- standard tcp/ip port
- i keep gettin an error everytime i try to add a standard tcp/ip port for a printer. i have tried repairing windows and i still get this problem?any sugestionsWhat's the error?You are more likely to receive a helpful answer if you provide more specific information, such as the exact error...
- Tags: Network technology, NETWORKING, john@..., TCP/IP
- Discussion threads 2007-08-04
- Experimental Evaluation of TCP Protocols for High-Speed Networks
- In this paper we present experimental results evaluating the performance of the Scalable-TCP, HS-TCP, BIC-TCP, FAST-TCP and H-TCP proposals in a series of benchmark tests. In summary, we find that both Scalable-TCP and FAST-TCP consistently exhibit substantial unfairness, even when competing flows share identical network path characteristics. Scalable-TCP, HS-TCP, FAST-TCP...
- Tags: Ireland, Network, Flow, TCP, Convergence, Tcp/Ip, VOIP, Networking, Telecommunications
- White papers 2006-08-31
- Controlling TCP Fairness in WLAN Access Networks
- This paper studies the problem of maintaining fairness for TCP connections in wireless local area networks WLANs based upon the IEEE 802.11 standard. TCP unfairness may result in significant degradation of performance leading to users perceiving unsatisfactory quality of service. The paper proposes and analyzes two solutions that are capable...
- Tags: Microsoft Access, WLAN, TCP, Fairness, Tcp/Ip, Wireless LANs, LANs, Networking, Wi-Fi, Wireless
- White papers 2005-12-01
- A Uni?ed Framework for Modeling TCP-Vegas, TCP-SACK, and TCP-Reno
- This paper presents a general analytical framework for the modeling and analysis of TCP variations. The framework allows the modeling of multiple variations of TCP, including TCP-Vegas, TCP-SACK, and TCP-Reno, under general network situations. In particular, the framework allows us to propose the first analytical model of TCP-Vegas for arbitrary...
- Tags: TCP, Framework, Modeling, Tcp/Ip, Research & Development, Networking, Business Operations
- White papers 2007-10-22
- PIX Firewall Configuration Question "Ports"
- Hello, I am fairly new to this PIX firewall configuration, but I am willing to get my hands dirty and I am fairly confortable working around in it. It was installed here where I work before I came. What I am wondering is if it is possible to have 1...
- Tags: TCP/IP, NETWORKING, ttetzloff@..., TCP
- Discussion threads 2007-07-12
- DHCP-allocator Event ID 3002
- The DHCP allocator was unable to bind to the address 192.168.0.1This error may indicate an error with TCP/IP networking.The data is the error code. After installing LevelOne Bluetooth USB Adapter I've got this problem. I can't access the internet or my mail, cause the webaddresses aren't resolved by DNS..The errorcode...
- Tags: NETWORKING, Network technology, gepewa@...
- Discussion threads 2004-12-22
- Augmented Split-TCP Over Wireless LANs
- This paper introduces a new split-TCP approach for improving TCP performance over IEEE 802.11-based wireless LANs. TCP over wireless LANs is not aggressive, which is a fundamental reason for poor performance. This paper proposes augmented split-TCP (AS-TCP) to mitigate this problem. The scheme extends the split-connection approach that divides a...
- Tags: WLAN, TCP, Tcp/Ip, LANs, Networking, Wireless LANs, Wireless
- White papers 2006-02-20
- The Effect of Reverse Traffic on the Performance of New TCP Congestion Control Algorithms
- Several new TCP congestion control algorithms have been proposed to speed up the TCP over very fast networks. All these algorithms propose their own modifications of the increasing/decreasing phases of classic Reno/NewReno TCP. On the other hand, all of them preserve the self-clocking mechanism, which is a fundamental part of...
- Tags: Algorithm, Performance, Congestion, TCP, Tcp/Ip, Networking
- White papers 2007-01-01
- Reverse Engineering TCP/IP-Like Networks Using Delay-Sensitive Utility Functions
- TCP/IP can be interpreted as a distributed primal-dual algorithm to maximize aggregate utility over source rates. It has recently been shown that an equilibrium of TCP/IP, if exists, maximizes the same delay-insensitive utility over both source rates and routes, provided pure congestion prices are used as link costs in the...
- Tags: Network, Reverse Engineering, Utility Function, Tcp/Ip, Network Technology, Networking
- White papers 2006-12-27
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