TCP/IP

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Transmission Control Protocol/Internet Protocol (TCP/IP) is the set of networking protocols that define end-to-end connectivity specifying how data should be packeted, addressed, transmitted, routed and received at the destination. This functionality is organized into four abstraction layers which are used to sort all related protocols according to the scope of networking involved.

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We get that error on just one particular website, ALL other websites are reachable. Using Chrome, FF, IE, none of them can get to that particular website. So, on one pc, I flushed DNS and set it to us…

2259 views
What Should I Do With This Threat Intelligence?

Are you wondering if you actually need threat intelligence? The answer is yes. We explain the basics for creating useful threat intelligence.

I have an Amazon Server EC2 instance I am managing now for a customer.

I need to add another public IP and am struggling to find documentation on this anywhere.

214 views

I am building an edge router that is connecting Frontier to our network.  They gave us a WAN IP block and a LAN public IP block.  I have configured the router and I think I have done it right for what…

852 views

We are changing internet provider and need help replacing public IP ,subnet mask, and gateway in router. Here is the run config. Any help would be appreciated.

New ISP:
IP: 222.222.222.222
Subnet…

224 views

I am need to write a Windows Service application that accepts TCP/IP connections for much simultaneous connections . Something about 2000 connections at time.

I prefer if this Windows Service is a…

450 views

I've had a long standing issue at a client site where there is a Comcast gateway, a couple of Ubiquiti access points and a security system with DVR. When I connect my laptop to this network, I am unab…

846 views

I'm seeing an inordinate amount of tcp denies in my ASA that are not attributable to my access lists.  The logging is over 90% tcp deny with mostly PSH ACK and some ACK and very seldomly FIN.
There d…

731 views

I had this question after viewing Jump servers for remote access across very large enterprise (https://www.experts-exchange.com/questions/28937164/Jump-servers-for-remote-access-across-very-large-ente

699 views

is it possible to do an ip reservation scope on ASA devices? for example, mac address 12.12.12.14.12 binding to ip 11.11.11.2

if you have done it, please advise the steps.

thanks,
mwauki

673 views

Hello, we have installed a new install of SQL Server 2014 Enterprise Edition on our new Server and enabled TCP/IP under the Configuration Manager with a restart.

If we try to connect to our databas…

1436 views
How to run any project with ease

Manage projects of all sizes how you want. Great for personal to-do lists, project milestones, team priorities and launch plans.
- Combine task lists, docs, spreadsheets, and chat in one
- View and edit from mobile/offline
- Cut down on emails

Anyway I can setup my Sonicwall Firewall to automatically run a speedtest @ 2am daily, turning off the LAN during that test so I can have a HISTORIC record of speeds ?

http://testmy.net/auto?extraI…

134 views

I have been trying to get a Ricoh 6430DN printer to connected to a Comcast cable modem so that it will be accessible to other computers on the same network.

I have connected two known good network …

1249 views

here's my line settings , how much speed will i attain from the 16Mbps ?

436 views

hi guys,

We have a store in Spain who no longer can access the internet. But we have had to resolve things remotely by configuring things and sending a new router every time, to no avail. Basicall…

446 views

Hi

A Windows 7 64bit Lenovo Thinkpad e540 seems as if it keeps losing its IP configuration (+ ESET NOD32)

The user tries to reach certain websites and obtains a can't reach error instead, with I…

1572 views

Hi All Expert,

Good Day.

I am getting this DNS name does not exist (error code 0x0000232B RCODE_NAME_ERROR)when trying to join domain from laptop Windows 10. I have went to the server room and d…

438 views

I've never really had the need to use a VPN (or set one up for someone else) because "Australia".  We have really bad internet here and I've always been pretty blahzay about security and privacy becau…

966 views

I have an SBS 2008 server.  Randomly it could not ping default gateway/firewall and thus could not get to the internet....  It's happened twice now with completely different fixes which is strange....…

2591 views

Hi All,

Can anyone tell me if pfSense has IP Helper support? I've Googled and Youtube'd to no avail and thought where better to ask then trusty old Experts-Exchange.

The plan is to host multiple…

492 views
IT, Stop Being Called Into Every Meeting

Highfive is so simple that setting up every meeting room takes just minutes and every employee will be able to start or join a call from any room with ease. Never be called into a meeting just to get it started again. This is how video conferencing should work!

I'm trying to get my site to pass the IPV6 test that's needed for other items.

I have an A and AAAA record in my DNS and pointed at my load balancer on AWS.

My problem is that it passes the DNS …

355 views

Hi,

We have a 5 user domain network with a Server 2012 domain controller.  We have a 10MB leased line coming in to the office and users are frequently complaining that the internet literally slows …

758 views

When user checks the ip address using whatismyip.org using a cell phone browser (On Blackberry 10) they get an IPv4 address.
But when they check using their Surface, they get an IPv6 address.

Is t…

258 views

Hello,

I have very little knowledge of networking and so I can not seem to figure out what is going wrong here.

My set up includes a laptop running Windows 10 connected to internet through Wi-Fi…

13142 views

I am trying to echo a users IP address. If I use :

(CODE)

it outputs ::1 for some reason?

865 views

I have a problem with some advanced routing.  And although I passed my TCP/IP training courses, it was many years ago....  

What I need to achieve.  I have a hotel, not actually mine, they have a n…

256 views
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