Networking refers to the technologies and techniques that enable the interconnection of devices and applications allowing them to communicate electronically.

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Upgrading TWC modem/router with 192.168.0.1 default address on home network with existing Trendnet wired router set to 192.168.2.1 [on hold]

I have a home network with a Trendnet TW100-S4W1CA wired router with a base address of 192.168.2.1, DHCP turned on with a range of 192.168.2.1 - 192.168.2.100, subnet 255.255.255.0. It is connected to ...
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0answers
10 views

Scheduled execution of files over network

forgive my ignorance as I'm a Mac user and have been out of the Windows world for a long time. I am looking for direction on how I might be able to achieve the following: Have a windows computer ...
-1
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0answers
12 views

Setting up Bridge

I'll be setting up a bridge network for kvm in CentOS 7. The thing is the server will be relocated to a new office in a few weeks, but I need to get it up and running now. I don't know if our ...
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1answer
19 views

Windows 7 pro- Normal boot up, but slow network login

got a question I'd like a little advice on. I have a user on out network who's got a laptop that boots up at a normal speed to the login page, but once he enters in his login credentials the system ...
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0answers
6 views

Freeradius auth error message

How can I set up a message sent to the user when enters a bad credentials to WPA2-Enterprise network? I am now using Freeradius and when I enter bad password, it says nothing, but Windows throws "You ...
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0answers
14 views

How to make openwrt in esxi work as normal router?Creating multiple VM network and selecting them in op is not working

I have worked on this few days,but not too much documents and I am a newbie for this.I have an x86 PC with 5 Intel NICs.One nic is connected to public wan and others are connected to PCs. Now only one ...
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0answers
10 views

DSL modem in bridge mode but router not accessible from the internet

I have a DLink ADSL modem which I have put into bridge mode and connected to a Fortigate 200A firewall. The Fortigate is able to connect through PPPoE and receives the static public IP. I can browse ...
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0answers
18 views

How to foward 2 users requesting 2 different URLS(ports) to docker containers managed by apache in docker (beginner) [on hold]

So. Lets first kick it off by me saying im not a networker (but learning to be one), but i have a problem related to it. If you have any answers, would you please provide it in laymans terms (Terms ...
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1answer
43 views

How to find IP address of ADSL modem?

Our fall back Internet connection uses a SpeedStream 4100 modem, which just broke, so I have replaced it with a new one. I need to configure it to bridge mode, but I can't even find its IP address. ...
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2answers
38 views

If network card supports 802.11n, does it mean it supports 5ghz band? [on hold]

I've gotten a new router that broadcasts 2.4ghz and 5ghz bands. But my desktop could only see the 2.4ghz connection. I read from a website that as long as my network adapter supports 802.11a or ...
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2answers
50 views

Reaching system behind router

I have a situation where I have a small server appliance that I want people to be able to just plug into their router, turn it on and let it work. When the appliance starts up it determines its lan ...
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0answers
10 views

TC fails to shape traffic with DRR

I try to control outgoing traffic from my server. I want to have several classes with different QoS parameters. For the scheduling I'm using DRR. The following commands (should) create a Tree of ...
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1answer
24 views

NAT TCP/UDP Connections With iptables on AWS

So I've got 2 instances on AWS set up so I can SSH into them directly (A, B) from my home machine C. But I want to set up box A so that I can forward certain UDP and TCP connections from it to box B. ...
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1answer
22 views

Creating a virtual network for KVM guests spanning multiple host machines

I have 5 physical machines running Ubuntu 14.04, all of them are together in a network. These all have static IP addresses. Each of these machines has 1 to 4 virtual machines via KVM/QEMU running ...
-1
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0answers
17 views

How important is to keep up to date with cisco certifications and training books? [on hold]

A coworker gave me book on Cisco CCNA ICND exam 640-811 training. I'm new to networking and thinking about getting certification if this book has enough relevant information to help me pass.
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1answer
26 views

Binding local network machines to global doman names via dnsmasq. Possible?

In my current setup, I've got a Thomson TWG870UG modem-router(internal DHCP server disabled) with a couple of home network machines connected to it via both ethernet and wlan. One of these machines ...
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0answers
24 views

The ping command cannot be found by my shell [on hold]

I am trying to run ping in the terminal, and it seems the program has disappeared. I am running Mac OS 10.10 Yosemite. I receive the following output from my shell: command not found: ping I used to ...
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1answer
19 views

Egress Interface Routing - Potential Solution?

We have an ISP (ISP1), with a router maintained by the ISP. We are bringing up a 2nd ISP (ISP2), with routers we will deploy and maintain. We'd like to gradually migrate services from ISP1 to ISP2, ...
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1answer
28 views

How to host JSON data for a website's JavaScript [on hold]

I am about as green as they come as far as networking goes so I am asking for a little latitude. I have a program running on a Windows 2012 server and I need to send a couple bytes of text from it to ...
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0answers
70 views

How to simulate network partitions on windows? [on hold]

Working on a project which implements a clustering algorithm. One important property of the clustering is to respect guarantees when face a network partition. To prove that clustering works I need a ...
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0answers
19 views

1 modem connect with 2 device, how to keep them in the same network? [on hold]

My ISP provide me a moderm that has 4 input and I can plug lan cable in it the modem model: http://huawei.com/en/products/fixed-access/fttx/ont/hg863/index.htm So I have attempt like this before ...
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1answer
26 views

Cisco Router NAT does not work

I have an active internet connection from provider on festethernret0 and also have vlan1. I need to have an internet connection from festethernret0 to my vlan1. I am doing it this way: access-list 2 ...
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1answer
34 views

127/8 address is not passed to IP stack?

I send IP/UDP frames using raw sockets with destination IP address from 127/8 range - e.g. 127.0.0.6. So, packets are sent over the network OK (checked using tcpdump on the target device). But on ...
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1answer
26 views

Time Between successive DNS queries.

Using a PC running Ubuntu 14.04. I'm testing web browsing using a very low speed and low data rate link. My system is congested with DNS queries (and other types of packets like TCP re-transmission). ...
1
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1answer
32 views

When connecting to localhost, does a full SYN, SYN-ACK, ACK handshake still occur?

This question is addressed, primarily for Linux. While I could find the answer myself, I'm hoping someone out there just knows the answer implicitly and can save me some time. If I'm connecting to a ...
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1answer
20 views

Static ip routing in Mac OS [closed]

OS X machine with x2 NICs connected (en0 and en1). en1 is the default interface and connection to the internet via gateway 192.168.1.254. My IP is 192.168.1.65 en0 is a private connection with ...
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0answers
12 views

Route only on output chain?

I have two machines A and B. I want to send iperf traffic from A to B, but first have it route through a userspace program on A. I did this with a tunneling device: therefore, I used the command ip ...
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1answer
18 views

On a Linux NAT host, late duplicate segments cause connection resets

https://www.cloudshark.org/captures/6f185eb12e97 172.30.5.1 Linux vm with bridged networking, running on another server, VM has RFC1918 address only 144.76.103.194 Linux host ...
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1answer
57 views
+100

Limit/Throttle per user OpenVPN bandwidth using TC

I have a group of users connecting to my server via OpenVPN TCP and UDP (2 services). The two services are operating on tun0 and tun1 I'd like to be able to limit each user's bandwidth to say 5mb/s ...
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3 views

SCOM manual dashboard creation displaying blank for network devices

I have successfully installed SCOM 2012 r2 (roll up installed) and able to display all the intended network devices in default dashboard. Now i am going to create manual dashboard for network ...
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2answers
31 views

Is there any disadvantage to putting a modem in bridge mode

In order to prevent the need of port forwarding and double natting I plan to put a modem into bridge mode. Are there any side effects or problems that could come of placing a modem into bridge mode in ...
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0answers
24 views

setting up network that will be sent off [closed]

I'm having to set up a centOS 7 server that will be running KVM to run multi. virtual machines. This isn't anything new, but this server will be sent off to a remote office once I finish setting up ...
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0answers
26 views

Where do I even begin on becoming a SysAdmin? [closed]

So, I decided that I would love to spend my free time learning about System Administration and I guess becoming one. But, problem is, I do not know where to even begin. I just don't have a clue. I ...
0
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1answer
44 views

Windows Server 2008 R2 Standard Dropping Packets

I am seeing a strange problem with my WS2008R2 server I believe is related to networking. The symptom is that 6% of all attempts to ping the server using tcp fails. For example, from another machine, ...
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1answer
9 views

Replicate Partition Over Network

Is there a way, in Windows Server 2012 to replicate two same-size partitions over the network in real-time, preferably at driver level (not user-land)? I am asking for two Hyper-V servers. There is ...
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1answer
29 views

Linux: nslookup and dig resolve $HOSTNAME, but ping doesn't

In our private network we have a Consul service discovery server (10.241.232.14) that provides a DNS interface (port 8600). We would like to set our common DNS servers to forward some queries to the ...
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0answers
2 views

TPM Drive Encryption / Network Profile

I have the following situation: I have an old application that cannot be rewritten for various reasons that I can't go into. Just noting that refactoring the source of the problem is a total no-go. ...
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0answers
11 views

Can't connect to selenium grid on VM?

I have a VM on the same network as my computer. I can remote into the VM and open up the selenium grid console (http://(ip):4444/grid/console) and it appears to be working fine. When I try to open ...
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0answers
14 views

Web servers configured to use 'localhost' not accessible inside network

What would cause an Ubuntu Server 14.04 LTS machine to lose the ability to use 'localhost' in web-server configurations? If I replace 'localhost' with the machine's static, internal IP address ...
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0answers
16 views

Gateway to internet on CentOS 6

I have 2 CentOS 6 linux servers say hostnames cent001 and cent002 cent001 has 2 Nic's 1 Bridged and 1 Nat cent001 is able to ping google server 8.8.8.8 with the help of bridged NIC cent002 has only ...
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0answers
29 views

Windows 7 Network Adapter Periodically Shows Disconnected

Description: My company is currently working on a project that utilizes 2 servers, and 1 client, running on an isolated network. Periodically, one or both of the servers will lose network ...
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14 views

Windows 7 behavior on network link between SonicWALL and pfSense

I have two networks behind two different firewall at the same site. I have linked them together by using a spare interface on each device. Network 1 - pfSense 10.0.10.0/24 Network 2 - SonicWALL ...
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1answer
18 views

Hyper-v ISCSI Network Setup

I have Hyper-v installed on Windows Server 2012 R2. We are using 2 x Dell R730xd's with 8 NICS (4x10GigE 4x1GigE) per host. I would like to dedicate 2 NICS to our ISCSI network, however I am unsure ...
0
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1answer
7 views

ipv6 address configuration on serial interfaces

I tried to configure Ipv6 static routing on three routers, I configured ipv6 addresses on all three routers using ipv6 address auto config, The middle router have been configured with different global ...
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0answers
20 views

I can't access a single php script from my android device browser using “192.168.x.x/image.php” .It says connection timed out [closed]

192.168.x.x is the ip of my PC. The same works if I try through my laptop browser. My wamp server is online(green).
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0answers
15 views

Vmware guest with host-only network not accessing host services

I've got a vmware workstation 11.1 with a VM on both NAT and host-only (192.168.14.0/24) networks. Both got an ip assigned from dhcp and I've got a default route pointing at the NAT network. The ...
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0answers
20 views

Cannot ping gateway (Intervlan routing)

I have two switchs cisco 2960 (sw-120 and IDF1-SW) and router cisco 1841 (IDF1-R). fa0/24 at sw-120 connected via fa0/7 at IDF1-SW fa0/1 and fa0/24 at IDF1-SW switched to trunk mode fa0/24 at ...
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0answers
15 views

Remote OSX Server does not accept TCP connections from abroad?

Long story short: I am able to connect to the box (which is located in my office) from home. Two different ISP providers. On the contrary, my friend from the US is not able to access it - the ...
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0answers
22 views

High bandwidth, high latency file transfer in Windows

We're attempting to transfer some SQL backup files (~5-75GB each) across a network with about 70ms latency between two servers (Server 2012 R2 - same domain) across a VPN connection. Both servers are ...
-1
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0answers
21 views

Static NAT in Windows computer [closed]

I have two interfaces on my Windows computer. I want to receive a packet from one interface and translate the source address in order to get the packet going through the other interface. How can I do ...