Questions about running a UNIX-like OS (typically Linux) on wired and wireless routers, including flashing, creating, and configuring custom firmware.

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1answer
2k views

How to setup PPPoE with OpenWrt

Probably this is a simple question, but I can't find an answer... I have an ADSL router (Dlink DSL-524T) which runs OpenWrt Backfire 10.03.1. It connects to the internet using PPPoA: this is my ...
2
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0answers
21 views

Flash OpenWrt Routers from Telnet

I have two routers. One has Chaos Calmer and the other has Attitude Adjustment. When I turn them on and check arp, nothing comes up. When I check route, the hardware address says (incomplete) but the ...
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vote
2answers
31 views

Unlocking all ports in a router when using Linux

I heard that Linux's open ports are not very vulnerable, so a normal desktop Linux installation doesn't need a firewall. Still, my router (Dlink) blocks some ports, even in LAN. Would it be a bad ...
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0answers
13 views

OpenWrt with Nodogsplash

I have a web application in MVC4 for Hot Spot Management system. I using it with OpenWrt and Nodogsplash, Now i need to authenticate the users in to external website. Is there any way to allow to ...
0
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0answers
21 views

Arch Linux Wireless Problems

I've got a problem with my wireless connection, the wireless bar is always showing 3 bars, I am using NetworkManager with dhclient and the strangest thing happens, I am getting a huge lag spike every ...
3
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2answers
37 views

Do I want a Repeater or a Bridge? (OpenWrt)

I'm setting up a network with openwrt. I have a router that I have set up for wifi which I will use as an access point. I want to add another router to my network so that the two can exchange traffic ...
-1
votes
1answer
15 views

Transmitted packets on a LAN interface may increase received packets on WAN interface?

Supose a simple home router gateway and the following: lan0 - Network interface responsible for LAN-side of the router wan0 - Network interface responsible for WAN-side of the router A default route ...
0
votes
1answer
43 views

Open Wrt with nodogsplash

I am using OpenWrt in my TP_Link TL-WRD3600 router. I have already set up a hotspot plugin (Nodogsplash) on my router. Now I need to allow access to some website before authentication on the splash ...
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0answers
18 views

Is there any way to configure fully automated proxyclient for workstations?

My network diagram is similar to above image; pc-router is also acting as firewall & I'm running squid on it. pc-router is running debian Vlan having workstations running fedora, ubuntu and ...
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2answers
222 views

OpenVPN and MerlinWRT

My ASUS router is flashed with MerlinWRT. This configuration used to work, however now when I connect I get, $ sudo openvpn ./client1.ovpn OpenVPN 2.3.2 x86_64-pc-linux-gnu [SSL (OpenSSL)] [LZO] ...
3
votes
2answers
1k views

Open and redirect port

I'm trying to set up SNMP for a router so I can monitor it from an existing Nagios installation on an off-site server. I'm having trouble getting the router to respond to SNMP requests from the WAN, ...
4
votes
2answers
578 views

Virtual Wireless Access Point

Basically, I want to be able to connect to a wireless network from my laptop. Then, I want my virtual machine to acquire internet access via a bridged connection from ETH0 of the VM to the host’s ...
0
votes
1answer
1k views

Wifi on/off button on TP-Link WR841ND

I installed OpenWRT into TP-Link WR841ND. Everything works as expected, but I can't get the wifi on/off switch working. I followed the guide described on the OpenWRT page for this router. Scripts in ...
2
votes
1answer
31 views

How to use the same Wi-Fi adapter to connect to a wireless network, and broadcast an AP at the same time?

I have a Wi-Fi router that runs OpenWRT. It connects to my home Wi-Fi and uses it for Internet access. At the same time, it broadcasts an access point itself and it is bridged with its LAN so other ...
0
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0answers
21 views

load balance router

i am do live far away from the local exchange and the DSL is quite unstable. it can get days without service. so i decided to invest in a usb 3g stick (10GB/month, ppp0 in my system) and a usb wifi ...
2
votes
2answers
1k views

What does my router need to act as a name server for my home network?

I am happily using an old PC as a router. Two network cards, Debian wheezy, NAT, ... everything just fine. My home network uses static IPs, which I am also happy with. However, every box on my home ...
2
votes
2answers
54 views

How to get IPs via DHCP, through a router from another DHCP server?

ISP -> OpenBSD box -> Wireless router We have an OpenBSD machine that connects directly to the internet, has dhcp/dns cache "server" on it, and forwards the connection to clients via ethernet ...
0
votes
1answer
38 views

dd wrt firmwire file prompt password while extracting

I am a newbie in using dd wrt firmware development. Last day i download a dd wrt firmware dd-wrt.v24-21676_NEWD-2_K2.6_mini-e900.bin for Linksys E 900 router. I need to extract this image for ...
0
votes
1answer
34 views

Setting permissions on SMB

My router (Netgear DGN-2200-64) has a USB port usable as SMB storage (with the default firmware - I guess it's Linux under the hood). I plugged in an old flash disk (FAT formatted I think) & set ...
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0answers
20 views

Switch gateways on failure (WRT)

I have two WRT routers each connected to their own wireless gateway (cell phone and hotspot across the street). The routers lans are bridged with WDS and on the same subnet, so clients can connect to ...
0
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0answers
210 views

CentOS as home network router: IPTables Port Forwarding failure

I have currently set up a home server with a CentOS 6.6 installation on it. The server has two NIC interfaces which I'm using it as my router and DHCP server. Here's a diagram showing the network ...
0
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1answer
40 views

Is there a way to switch interface only by interface name?

I am currently working on how to switch network interface in Linux environment. And i am experimenting on switching network interface by switching default gateway, for example switch to wlan0 when ...
2
votes
1answer
68 views

On a router, what decides if a packet should be forwarded or directed into the router itself?

I'm trying to learn how packet routing works on a linux-based router (OpenWRT in my case) a bit better for setting up a few projects/just-learning. Referencing the below chart, I'll break this into ...
0
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0answers
42 views

static ip address in yast

I think that I set the FQDN for the server in yast. How do I set the static IP address with yast? I go to network devices => network settings, see my NIC: YaST2 - lan @ arrakis Network Settings ...
4
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2answers
510 views

configure postfix to accept mail from two WANs

I have a mac server but my question has long left the realm of the GUI. My last hope is a unix forum. I have a cisco router with two WAN ports. The mac uses postfix 2.8.3. I have correctly ...
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vote
4answers
3k views

How to make sense of an iptables chain configuration

This is about how to make sense of the chains found in the iptables default configuration on a typical home router running OpenWrt (a stripped down Linux for router devices), but which ultimately may ...
0
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1answer
306 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 ! ...
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2answers
47 views

Get Any Interface's Router Address

How can I know what the router's address is when I am on multiple interface? I know by using netstat -rn I can have the dominating interface's gateway, which is the router's address. But what about ...
1
vote
1answer
87 views

Can't connect Wifi devices to router when wired Ethernet computer is connected

I have a arch desktop with samba and ssh configured connected to a WiFi router/ADSL2 modem via ethernet. I was not able to connect any of my mobile devices (phones and tablet) or my netbook (running ...
0
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1answer
392 views

OpenWRT configuring access point Archer C7v2

I am trying to configure OpenWRT Barrier Breaker on Archer C7v2 to act as a dumb access point, so the WAN ethernet port will be connected to my network, and anything connected to wifi or the other LAN ...
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0answers
73 views

iptables - How to remove connection tracking

I'm using this command for redirect all web traffic (http) into my local web server iptables -t nat -I PREROUTING -p tcp --dport 80 -j DNAT --to 192.168.11.100 Then i test, access a website and got ...
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2answers
399 views

iptables - Redirect web traffic to LAN Server

I have a webserver which is running on ip address 192.168.11.100 How can i use iptables to redirect all web traffic (http and https) to my webserver on LAN? After that i want to add except list mac ...
1
vote
1answer
172 views

Internet is not working when VPN is up

I'd like to redirect all trafic through VPN, but it doesn't work at all. server: RT-N16 [TomatoUSB v1.28.0000 MIPSR2-112 K26 USB AIO] client: Ubuntu 14.04.1 server config: # Automatically ...
1
vote
1answer
148 views

Linux as a router: Sending ICMPv4 messages “net unreachable” and “host unreachable”

I want routers based on GNU/Linux to sent at least those ICMPv4 messages: net unreachable, host unreachable. Especially the host unrechable message is important to me: If a router resides in the same ...
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0answers
71 views

ping on linux vs ping on mikrotik

I have ubuntu server 14.04, with two network cards (LAN and WAN). I made a masquerate for WAN card. I have internet access from a host within the Lan of router. I do a ping to 8.8.8.8 and try to ...
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0answers
67 views

Seems that my router accessed one of my Linux systems, what does it mean?

I just ran the last command on two of my systems and there are weird entries: user pts/2 dsldevice.lan Sun Dec 28 22:59:35 2014 - Tue Dec 30 00:40:41 2014 (1+01:41) Notice: dsldevice.lan ...
1
vote
1answer
856 views

Imagemagick on open wrt router “UnableToOpenConfigureFile”

I have installed Open Wrt on my TP-Link TL-WR740N/ND v4. Everything works fine but the Imagemagick. I have installed it into ram (no enough space on rom ) with opkg # opkg install imagemagick ...
3
votes
1answer
204 views

ARP request with wrong IP address

I have a strange problem with a Linux router. The setup is like this: host1 === Linux router === host2 a.b.c.d --- a.b.c.e/g.h.i.j --- g.i.h.k Every five minutes host1 tries to reach host2. ...
0
votes
1answer
108 views

Debian server makes internet connection drop

I have setup a small home server / NAS running Debian 7. The server is connected directly to the router with a static IP set in the router's control panel. There are no port forwarding rules set for ...
1
vote
1answer
41 views

Finding out if my system is being used as a bot by looking at ifconfig?

Recently, I have often been suspicious that my router (a linux box) might have been used as a bot for spam blowout or something of that quality because I may have misconfigured my iptables rules by ...
2
votes
1answer
1k views

Terminal server (ser2net) to configure new HP procurve switch

Switch: HP ProCurve 2910AL-48G - J9147A This switch is brand new straight from HP. Anyone familiar with ser2net for creating a terminal server to connect from usb>serial>console port on a HP ...
0
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0answers
190 views

iptables IP address (source and destination IP address) mangling

I tried to understand the concept of iptables mangling part, but somehow failed to understand the IP header manipulative section. For example: Below is the system scenario which I'm trying to ...
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vote
0answers
67 views

Gargoyle repeater bridge channel hopping

I have the Linux-based Gargoyle firmware running on an old TP-Link router, serving as a Repeater bridge to extend the range of a WIFI access point. Do I need to lock the original access point to a ...
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0answers
28 views

Bandwidth stats on wifi for each network?

Is it posible to have the bandwidth usage of the wifi connection for each network I use? Currently I have vnstat instaled on my MacBook Pro retina runing Yosemite. It works well but I have the usage ...
2
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0answers
59 views

Desktop environment makes my router crash, why?

I'm a beginner Arch Linux user. Last week I decided to install it on my desktop too (Windows 8 dual boot) but for some reasons it makes my router go crazy! I have set it up with Ethernet connection ...
2
votes
1answer
126 views

How to flash a router from FreeWRT to OpenWrt?

How can I change the firmware on a router from FreeWRT to OpenWrt? The router is a Linksys WRT54GL, so it should have enough memory for OpenWrt and I have SSH connection as root to the system.
2
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0answers
105 views

Configuring default static routes with RIPv2

I am currently working on an assignment managing a smaller virtual network with virtual box and tiny core Linux. (Using quagga) I am supposed to let RIP handle the default routing, though I cannot ...
2
votes
3answers
2k views

How to setup transparent firewall using ArchLinux

I am trying to setup a Transparent Firewall using ArchLinux. My setup looks like this: (ISP, IP: 10.90.10.254) \ \ \ (eth0-> ip: 10.90.10.1 gateway: 10.90.10.254) +-----------+ | ...
2
votes
2answers
1k views

How would I build a linux based router?

I am looking into building a Linux based router out of a home-built Linux server. I don't have much experience with the software required however. I would like the server to run the following ...
3
votes
1answer
6k views

SSH: Network is unreachable (caused by router)

I've searched solution in Google for 3 days, when I decided to write here. I have a router, so in my house is WLAN. I use laptop when I stay at home. In another city in my office I have a second ...