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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0answers
16 views

Server 2012 will not activate anywhere access, cannot see server through router

I've got a simple installation of Windows Server 2012 R2 set up in our office out here. It was previously set up in our head office in town, however our ISP took control of both routers and blocked ...
0
votes
0answers
10 views

DD-WRT: WiFi in Client mode paired with routing's operating mode Router [on hold]

DD-WRT v3.0-r30082M Setup: Router 1 (home with Internet, 192.168.1.0/24), Router 2 (DD-WRT, 192.168.2.0/24) with connected to it LAN users. Goal: connect Router 2 to Router 1 via WiFi that the 2 ...
0
votes
2answers
2k views

Unable to access different subnet

Router ip: 192.168.3.1 Windows server: 192.168.3.50 (WLan) and 192.168.2.1 (LAN) PCs: 192.168.2.x I am able to access 192.168.3.50 from laptop (in 3.x network) but unable to access through other ...
1
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1answer
40 views

UDP multicast send/receive: Routing or socat issues?

I'm using 'socat' on Linux Centos 7 to diagnose some problems. Server and clients are all linux centos7, they all have multiple interfaces. Server 10.1.1.1 is on Switch 1, 10.1.1.2 is on Switch 2. ...
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1answer
27 views

Access shared files between two vlans using a local server

I am very new to networking. I have two VLANs, and want to read and transfer shared files between them. I cannot add a new router. I have access to a server which can be accessed by both the VLANs ...
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0answers
11 views

mail server behind ubuntu iptables router [duplicate]

I want to run a mailserver behind an iptables router. I set up the router with ip-forwarding on Ubuntu 16.04 Server edition. I enabled ip-forwarding in /etc/sysctl.conf . I have set net.ipv4....
0
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0answers
27 views

smtp-request behind iptables-router not working

I set up a router with ip-forwarding on Ubuntu 16.04 Server edition. I enabled ip-forwarding in /etc/sysctl.conf . I have set net.ipv4.ip_forward=1 and executed sysctl -p /etc/sysctl.conf I used ...
2
votes
1answer
40 views

Routing external traffic to a backup datacenter

I'm planning a backup data center and want all external hosts to transparently connect to DC2 if DC1 goes down. Assume I have public ip 1.1.1.1 at DC1, and public ip 2.2.2.2 at DC2. Obviously if ...
1
vote
1answer
1k views

Cisco IP SLA monitor failure on tcpConnect but the host can be telneted from router

I want to configure a failover link to my cache server with Cisco policy routing. So I attempted to create an ip sla monitor. here is the syntax in the cisco router (there is possibility of being ...
1
vote
1answer
5k views

cisco ip nat / port forwarding

I have been trying to get port forwarding working with a newly installed cisco router. I cannot seem to find where my fault is and have been looking for quite a while. The relevant section of my ...
0
votes
1answer
20 views

Issues with DMZ on Fortigate 90D, second router can't reach internet

I am having issues setting up a DMZ port on my Firewall (hardware router). I am also assuming this belongs in Super User, as it seems like a basic DMZ setup. Here is the setup: I have a Fortigate 90D ...
1
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2answers
1k views

Two wireless access points directly connected to modem possible?

I've got the following arrangement set up: Wireless Modem/Router/Switch --> Router 1 (LAN to LAN) Wireless Modem/Router/Switch --> Router 2 (LAN to LAN) with: Wireless Modem/Router/Switch Static ...
1
vote
2answers
2k views

Smoothwall Express interface issues

I have a SmoothWall Express box that is currently configured with a Green and Purple interface. Both interfaces are in the same /24 subnet (which seems odd to me). The green interface (address of ....
0
votes
0answers
2 views

Tomato router with separate DHCP server [migrated]

I currently have a Netgear R7000 (running Tomato) acting as my main router (DHCP and DNS) and access point. Because of how my house is laid out, the modem and router are apart from each other (...
0
votes
2answers
732 views

IPv6 configuration for my private network when prefix delegation is not supported by the provider?

I have a typical router with IPv4 and NAT setup. My provider sends an IPv6 address to the router, but it does not support the IPv6 prefix delegation. How can I get IPv6 addresses for my private ...
2
votes
1answer
4k views

Watchguard config, drop-in or mixed-routing mode?

I have a Watchguard XTM 2 that is currently acting as a firewall and a router for my business network, I currently have the WG setup in mixed-routing mode and am happy with the current configuration. ...
0
votes
0answers
21 views

Sonicwall inter WAN interface communication

I have the TZ105 sonicwall and X0 is LAN and the rest 4 interfaces are 4 different ISP connections through 4 ISP routers respectively. Basically I cannot get any device connected to an ISP router to ...
0
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0answers
3 views

How to fix “Possible PS or DA” issue at WiFi router? [migrated]

I have a home wifi network driven by Huawei HG232f. Couple times a day it's unavailable and I have to reboot router. I'n using ubuntu 14.04. While researching a problem I found such details: While ...
1
vote
2answers
2k views

Draytek 2830, Multiple VLANS on Same Port

The Kit Ubiquiti Unifi Long Range Wireless Access Point Cisco SG200-08P Switch (VLAN, POE Support) Draytek 2830VN Router The Problem I need to enable Multiple VLANS against a single port on the ...
0
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0answers
10 views

Are MAC addresses simple unique identifiers, or are there rules for categorizing MAC addresses?

Background Context: I've been scratching my head over an issue with my router picking up multiple VMs as a single device. I'm able to reserve ips for the separate MAC addresses, and as far as I'm ...
1
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0answers
24 views

Restrict internet access duration per day on router? [closed]

I want to restrict internet access duration per day per user on my router. The router is set up with Debian and functions as a wlan access-point with the help of HOSTAPD. I don't want to only restrict ...
0
votes
1answer
2k views

No internet access when toggling `redirect-gateway` in OpenVPN client config

I have a router with IP 192.168.1.1 subnetting 192.168.1.0/24. On that subnet, a Synology NAS has an IP of 192.168.1.181 and is running a VPN server using subnet 192.168.2.0/24. When I connect a ...
1
vote
1answer
1k views

DNSMasq wildcard top level domain/suffix

I'm running DD-WRT on my router and I need to block certain websites and all their potential suffixes, is that possible or would I have to list them all out individually? What I have is this address=...
0
votes
1answer
2k views

Cannot connect to my L2TP IPSec VPN

I am trying to get my VPN (L2TP IPSec PSK) to work. I have a Synology NAS where I have setup everything as it says on the Synology support page. In my Asus RT-N66U router I have opened UDP ports 500,...
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votes
1answer
29 views

What kind of emulator can i use to learn Cisco Router Configuration? [closed]

I am going through my CCNA materials. I came across this one topic called configuring the router. Now, i don't have a Cisco Router but i still want to go through the commands and see the results live. ...
41
votes
11answers
37k views

What is the difference between UDP and TCP?

My router has two protocols (and a "both" option) that I can select when setting up port forwarding: UDP and TCP. What is the difference between these two protocols and when would you select one over ...
0
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0answers
27 views

Redirect TCP traffic from interface wlan0 (AP mode) to localhost:8080?

Here I want to redirect all traffic heading to all_IP:80 from wlan0 ( AP mode, as a hotspot, in a router) to my local TCP listener, listening on localhost:8080 OS : debian I used these command to do ...
0
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0answers
12 views

Diagnosing the source of improper ARP requests on WAN side of Linux firewall/router

The kernel log on a Linux firewall/router I administer recently started filling with messages like these: net_ratelimit: 405 callbacks suppressed neighbour: arp_cache: neighbor table overflow! ...
0
votes
0answers
41 views

How to do Multi WAN routing based on latency/distance to the target IP

I have two different internet connections available (DSL & LTE), and I'm building a router to "combine" those. What I would like to achieve: The routing should happen based on the latency or ...
3
votes
4answers
953 views

How can private IPV4 addresses get past iptables NAT (tcp RST,FIN)

I've got a router performing simple NAT translation using iptables iptables -t nat -o -j MASQUERADE This works fine almost all of the time except for one particular case where some TCP RST and FIN ...
1
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2answers
1k views

How to configure a network router to forward (rebroadcast) wcf discovery

I can't perform wcf discovery through a network router. I have a client and server app. When deploying these two apps to any two computers on the same lan it works perfectly. The client app finds ...
0
votes
1answer
39 views

Convert a LAN port to WAN port [closed]

I have D-Link DIR-600M N-Modem. A day ago the WAN port got damaged due to lightning but the other ports still work. I can connect to the modem but the WAN port does not respond. Is there any way I ...
4
votes
5answers
10k views

Simple Quagga BGP router

We are attempting to setup a Gentoo Linux box to run a Quagga BGP router for our internet connection. We've tried many things, but everything we've tried results in Quagga reporting that there is no ...
0
votes
2answers
39 views

How does a router without QoS decide bandwidth distribution?

I've been searching for this and from what little I've found modern day routers try to balance internet bandwidth as fairly as possible. (I'm using a Asus AC66U myself) For example, if I have a 100 ...
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votes
1answer
39 views

I can't access my home server using my public IP from local network [closed]

I've seen this question I can't access my public IP from local network but I think it's different I have a Vodafone Spain router from Huawei, model HG253sV2. In my local network I setup a HTTP ...
0
votes
0answers
60 views

create a PPTP VPN server to act same as PureVPN PPTP server?

I'm new in networking. Our ISPs are providing us with private IP addresses so port forwarding is not possible, They are offering fixed IP addresses but with extremely high price so the only option is ...
0
votes
1answer
21 views

Cannot access D-Link DES 3200-10 after resetting account

I've forgot my password and after googling I've found that in recovery mode I can reset my account. Connected to Switch using console port (VT100+ Keyboard compatible) and pressed Shift+6. I accessed ...
0
votes
1answer
19 views

Looking to mimic Netgear Nighthawk AC1900 Router Settings in a TP-Link MR3040 Router [closed]

I have a Netgear Nighthawk AC1900 Router that is setup and working correctly with a network that has two Wifi cameras and a Linux PC acting as a server. Static IP addresses have been assigned to both ...
0
votes
0answers
39 views

The Chrome browser can sometimes not reach Google servers with a new router

I have an odd problem which I haven't been able to even find mentioned elsewhere. A while back, I switched out the Wifi access points as well as the router for a small office network. After I did this,...
0
votes
0answers
13 views

Route between E1 devices

I have this topology and I need to configure routing between my CISCO 2911 routers to connect my devices, that are using E1 without any timeslots separation.
2
votes
3answers
139 views

Port forwarding in pfSense not working

I recently set up a pfSense router and can't get any port forwarding to work from outside my own LAN. I have the following forwarding rule to a local server located at 10.0.1.2: Note that if I ...
1
vote
2answers
536 views

How Can You Tell If IPSec Is Installed on Cisco

How can I tell if my Cisco router has IPSec installed? I went into configuration mode to see about setting up a crypto policy, but the 'crypto' keyword isn't available. Is this an indication that it ...
0
votes
2answers
84 views

Configuration to connect an Acess Point into a pfSense Network

At the moment I have an wired network provided by my pfSense router. I bought an Access point (tl-wa801nd access point), in order to have a wireless network in my wired network. In my computer host, I ...
0
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1answer
77 views

Windows 7 PCs in a domain - time source keeps changing

I need help figuring out why the time source on some PCs keeps changing. Right now they're on Local CMOS clock. If I do w32tm /config /syncfromflags:domhier /update net stop w32time net start ...
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votes
1answer
37 views

wifi only works when lan is connected [closed]

Hold tight, this is a strange one... I have a board with two network adapters, one lan and one wifi, each one properly configured and has its own ip address on the same network. Whenever they're ...
0
votes
1answer
33 views

Is it possible to set up a wifi router with no internet?

Is it possible to use a standard Linksys-type router and set up an internet-free wireless network? Example: Devices can see "My Network" and connect to it. While connected, calls to the internet ...
0
votes
3answers
3k views

Remote logging with Syslogd, can I change the hostname?

I am running ddwrt v24-sp2 on three WRT54GL routers. These routers all send their syslog information to the same remote server using syslogd The problem is that in the logs the hostname will change ...
0
votes
0answers
23 views

ftp server not responding after log in

So my problem is that I have a FTP server running on my NAS behind a router. When trying to log in through the NAS 192.168.1.X address I can connect and list the files but when accessing from my ...
0
votes
2answers
30 views

Sonicwall firewall router dhcp server stops working intermittently

I just bought a Sonicwall SOHO which is the new model that replace TZ105, TZ 205 series. The network stops working intermittently. The whole network is down after every 30~70 minutes of uptime, no ...
4
votes
1answer
18k views

How do I route all traffic from clients connected to the DD-WRT to its OpenVPN tunnel tun0?

I am setting a secondary (DD-WRT) router to act as a OpenVPN client so that all clients would get VPN access simply by connecting to the router. But seems clients traffic is always routed via the main ...