A device that connects two or more networks and is capable of forwarding data packets to a destination based on information contained within a packet and internal routing tables.

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1answer
2k views

How to install mikrotik routerOS on my computer [closed]

I got a mikrotik routerboard 950G and i downloaded netinstall v6.8 but i cannot install the routerOS into my computer. Can anybody help me out?
0
votes
1answer
77 views

Determine internal(LAN) IP address based on external connection port

We have an external VPN server; somebody within the LAN has connected to it, and I can see the port they connected through (ie. the NAT port the router set up for them). Is there any way to find the ...
0
votes
2answers
111 views

Is a “bridging device” required to join two networks?

We're considering two NBN fibre connections to the Internet (NBN is a fibre connection for those of you not living in Australia), with each connection having it's own subnet. The first connection's ...
0
votes
2answers
980 views

Access internal ip (home server) through double NAT (router + ISP) [closed]

I have home server (debian-like machine) inside my wifi-network. I wan't to access it over http (for transmission-daemon web interface) and over ssh (to administrate it). The issue is that there are ...
1
vote
1answer
3k views

VPN (PPTP) connects successfully but unable to ping some devices in the LAN

My working company has this router (Cisco RV042G Gigabit Dual WAN VPN Router) and it has the IP 192.168.1.1 with subnet mask 255.255.255.0. It has 3 devices directly connected to its LAN ports, an ...
0
votes
1answer
134 views

Juniper SRX210 routing vlans

Ive got a Juniper SRX210 only using 2 ports Model: srx210he-poe JUNOS Software Release [11.4R2.14] WAN ge-0/0/0 up up ge-0/0/0.0 up up inet 192.168.10.4/...
0
votes
1answer
59 views

How to force computer to use PPPOE connection permanently

How can I force a computer on my network to use my second uncapped ISP account instead of the LAN default account which is set up in the router. I can create a PPPOE connection on the computer in ...
1
vote
1answer
79 views

Fibre Link Warehouse Contingency Plan Advice

Hi I am looking for some advice and best practices for the contingency plan of our Fibre Link data connection between Offices and the Warehouse which is approximately 100 metres away over a river but ...
1
vote
1answer
161 views

Cisco Router: ran 'no enable password'; 'enable' still asks for a password

I have a Cisco router (it's hard to access physically so I can't tell you the model) being used as a NAT without a firewall (inside the network in such a way that that does not pose a security thread) ...
1
vote
0answers
138 views

Cisco 1921 router stops routing traffic

I have a cisco 1921 router that recently started acting up. I haven't changed anything on the router in many months because everything was running smoothly, until a week ago. Configuration: The setup ...
-3
votes
1answer
204 views

Router not blocking https

We have a Netgear WNR834B wireless N-router. The problem is that its not blocking certain https sites with its content filtering and most said there is nothing much you can do that cant be bypassed ...
-1
votes
1answer
38 views

What happens when a switch goes offline? and can they be easily exploited through open wifi?

I have two simple questions regarding switches: When a router/ proxy server/ dns host fails, they tend to not allow any packets through. Is this the same with a switch? A switch is connected to 3 ...
2
votes
1answer
90 views

How to configure Linux router with 1 NIC

I have a network that looks like this: +--------------+ | Linux Router | +--------------+ 10.0.1.100/24 | 10.0.0.100/24 ...
-4
votes
1answer
613 views

Is it possible to change wireless router BSSID? [closed]

I suspect someone is trying to hack our wireless network. I've stopped broadcasting the SSID, but assuming they've already attempted to gain access in the past they could have the BSSID stored, which ...
0
votes
1answer
162 views

Forward port to address

I am trying to figure out how to map a specific address on a port on a different address. This might be very trivial, but I am not even sure how to ask Google. I have one machine running two servers: ...
2
votes
1answer
119 views

A local IP address (RFC 1918) on my network that is not … local

I've noticed an IP address today on my network (192.168.15.1) which when visited actually goes to a page that has a router webconfig page (Not my router) The puzzling thing is that i tried traceroute ...
2
votes
2answers
352 views

RRAS Server 2012 R2 Not Assigning Network Info or if it does not passing NAT

I wouldn't bother with this for any other reason than the fact that the speeds I get are worth it. Cable Modem (Bridge mode) - Server 2012 R2 (RRAS) - Linksys EA2700 (Bridged as Switch) My issue is ...
0
votes
1answer
271 views

How can I tell if a cisco router is dropping pings due to DOS suspicion or if it's experiencing packet loss?

We use a PRTG server that's connected to a cisco 6500, which feeds a large network of about 1200 switches and radios in a router-on-a-stick topology. In PRTG I'm able to set a 'ping burst' sensor on a ...
0
votes
1answer
171 views

OpenVZ container(s) and NAT

I have been trying to days to solve my NAT issue with OpenVZ. I have used their guide on their website/wiki, however I just seem to be unable to get it to work. My Linux box is running on CentOS 6 (...
0
votes
1answer
64 views

multiple ips on same server

We have a server (a router) with 5 IP addresses (we are hosting different Websites). I'm wondering why the server was setup like that: -> eth1 is connected to the modem -> when the connection is ...
-1
votes
2answers
190 views

How to Redirect URL Page to another URL

Good Day, When a user enters http://test.com on the browser I would like him redirected to my site published on our server. I already knew that I can change it in the hosts file of devices connected ...
3
votes
1answer
41 views

Router dies on wifi usage

We're having a Netgear WGR614v2 router, and as soon as a device generates some WiFi Traffic, the router completely dies. By opening http://9gag.com/ I can reproduce the problem. $ ping 192.168.0.1 ...
1
vote
1answer
120 views

SQL Server Connection Issue with New Router But Works With Old Router

I have an issue that really has me stumped. I have a router that is overheating and needs to be upgraded. When I connect the new router and configure it with the same DHCP settings and IP ranges as ...
0
votes
1answer
2k views

Draytek Vigor 2860 multiple external IP-addresses

I've bought a DrayTek Vigor 2860 for my company network. And I'd like to use it for two VLANs with separated external IP's. I have 6 LAN ports on my DrayTek. For example: External IP-adres: 201.102....
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votes
1answer
58 views

The Router Mac Address [closed]

Some sites can get the mac address of my network interface bu using cookies or java script ! but can they get my router mac address ?
0
votes
2answers
93 views

Is turning off ARP a common practice?

I'm just trying to diagnose a problem I and a colleague have had on two separate occasions to swap out an old router with a new one. Both starting from scratch, we've found that we can't seem to ...
0
votes
1answer
39 views

CentOS as a router — Can't get static IP adress for Internal Zone

I'm trying to make a router with a CentOS 7 box. enp2s2f0 ---> External Zone ---> directly connected to the internet. enp2s2f1 ---> Internal Zone ---> Connected to a PC (will be connected to a switch ...
1
vote
0answers
88 views

Gateway/Modem overload when running a web spider

Problem: All other devices on the network experience serious lag and timed out web pages, email, chat dropping, etc while this is running. This is a cross post from stackoverflow, I may have used the ...
6
votes
5answers
4k views

How does a router get its IP address assigned?

I understand how a device connecting to a router (e.g. 72.73.74.75) gets assigned a local IP address (e.g. 192.168.1.5) using DHCP. BUT, how does the router itself get the IP address assigned from ...
0
votes
1answer
623 views

ACL Rule to Open UDP Ports

I have the current rules in an attempt to open port 5060 and 10000-20000 for my VoIP provider. We are on a Cisco 1921 router. This ACL is applied to the WAN port on the router facing the ISP. Nmap ...
0
votes
1answer
129 views

Modem, Router, Switch configuration [closed]

I have two switches in different rooms, both wired to a router (LAN ports) which is in turn wired (WAN port) to a cable modem. I want to switch from cable to DSL for cost reasons, but keep the router ...
-3
votes
1answer
34 views

Simple to use VPN Firewall [closed]

In my company we use a Cisco ASA 5505 Router with the VPN, Firewall setup, and we route IP and VOIP traffic through it. I can only log into the router from a single computer due to the quirkiness of ...
0
votes
3answers
175 views

Server talks to one group but not other, both groups talk to each other

I've been trying to figure this out for a couple of days now and no luck so I thought I'd ask here. We have two buildings connected via a line of sight wireless network bridge. We have two routers, ...
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votes
1answer
157 views

how to connect 2 networks with different routers

I have a TP-Link TL-ER6120 VPN router and a Cisco RV-180 VPN router. I want to have 2 networks with two routers connecting each other. My network is the following: Internet -----> TL-ER6120 (192.168....
0
votes
1answer
34 views

WRT160NL Linksys Cisco Wifi router

There is a WRT160NL Cisco Wifi router, and has to decrease the wifi range, so it cannot go outside of the office. I tried to find this settings on the admin page, but I have not found yet. Does ...
-3
votes
2answers
30 views

Routing a port with no defined port forwarding rules to multiple machines listening on that port [closed]

This is something I've been wondering for a long time but never actually faced a situation where I had time to play with it. Lets say I have a router which has no defined port forwarding rules for ...
0
votes
1answer
403 views

forwarding packet from one interface to another interface

I have an embeded system with 2 interfaces e0 and m0, whose ips are 10.0.0.20 and 192.168.0.20, respectively. Incoming packets into e0 have an ip of 10.0.0.10 and should be forwarded to m0 interface ...
1
vote
1answer
251 views

Is it safe to use PoE injector for routers that do not support PoE

We bought an Asus router n66U to be installed in a tourist bus along with a server. The bus has a inverter to supply a 220V AC. However, there can be abrupt power fluctuations specially during ...
1
vote
2answers
598 views

router: ping fails at specific time for 40 seconds

my network looks like this: ISP cable --- ISP modem/router (2 in 1) \ \--- my router --- wifi connection --- computer 1 \----------- cable connection --...
-1
votes
1answer
287 views

Setting up pfsense on a small business network for firewall use

I have approximately 20 machines that will all be on the same subnet with a pfsense firewall. I have no experience with pfsense, so I am just starting out. I have the following configuration: The ...
0
votes
0answers
347 views

Port Mirroring on Wireless router

I will be going on site to help hotel manager to identify who is using P2P (torrents) in hotel and abusing network usage for other guests. Easy option would be 1. Port Mirroring on wireless router ...
2
votes
2answers
446 views

nmap results to find open ports for SIP

I suspect that a firewall, or other security, on either the router, or on tleilax or doge is causing a problem with SIP calls. How do I establish that the connection is allowed and not being blocked? ...
0
votes
1answer
352 views

iptables - Redirect except list MAC Address

I'm using iptables on my router to redirect all web traffic to my page. But i don't know how to except my mac address list. I did command like this iptables -t nat -A PREROUTING -m mac ! --mac-...
0
votes
1answer
227 views

How to connect to external server using router from VLAN's

I am newbie. I am trying to build network system in Packet Tracer. Now I have such network layout. I have different VLAN's Accounting and Sales. I have configured this using subinterface in ...
1
vote
1answer
568 views

Why does a router ping failure respond using a different IP?

From Windows CMD, when trying to ping another computer on our internal LAN, the IP obviously fails to respond. However the reply of "Destination host unreachable." comes from yet a different IP, and ...
4
votes
4answers
1k views

Is enabling https on a Cisco router a considerable security risk?

I would like to use Cisco's Network Assistant to manage my Cisco routers (I know there are other solutions for this, but for now I've decided to use CNA). It requires the HTTP or HTTPS service to be ...
-4
votes
2answers
132 views

Cisco 2801 - ACL example to prevent certain users in same subnet from accessing certain devices [closed]

May be a simple answer, but does anyone have an example of an ACL that would prevent certain users (preferably based on MAC address, so that I can not have to deal with static DHCP addressing) from ...
1
vote
1answer
362 views

(net)SNMP can GET but not SET

I am running OpenWRT (tried all 3 latest versions) in a TP-LINK WDR3600, with snmpd and snmp utils installed. I can get (although MIBs seem missing) but not set OIDs. SNMPGET root@OpenWrt:/# snmpget ...
0
votes
0answers
78 views

Redirect traffic through a computer to another connected to the same switch

I am trying to setup a single sender, single bottleneck and single receiver network. Network Image The router in the image is a computer that has ip_forwarding enabled. PC1 has the default gateway ...
-1
votes
1answer
824 views

Open port to only one external IP address

I am having trouble with unwanted traffic on a certain open port and want to lock the open port so it only allows incoming traffic from One single external IP address. I have had a Google and cant ...