Questions tagged [openwrt]
OpenWrt is a Linux distribution primarily targeted at routing on embedded devices.
233
questions
29
votes
2
answers
6k
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Why is the maximum length of OpenWrt’s root password 8 characters?
When I try to set root's password:
root@OpenWrt:~# passwd
Changing password for root
Enter the new password (minimum of 5, maximum of 8 characters)
Please use a combination of upper and lower case ...
- 571
22
votes
6
answers
25k
views
dnsmasq: mapping 2 MAC addresses to the same IP address
Is it possible to map 2 different MAC addresses to the same IP address?
For my backup, I need to connect back from the server to the portable, and I would like to have the same IP both for the ...
- 393
15
votes
6
answers
53k
views
how to get a list of the connected wifi clients in OpenWrt 10.03?
how to get a list of the connected wifi clients in OpenWrt 10.03?
- 3,177
10
votes
3
answers
47k
views
Redirect DNS requests with OpenWrt
I've brought a wireless router to my office, because there's no free network socket near my place. Every normal computer that is connected via Ethernet cable normally gets an IP and DNS server ...
- 213
9
votes
2
answers
22k
views
How to serve custom dns to dhcp clients in openWrt? [closed]
I would like to serve custom DNS server to dhcp clients. How I can achieve that in openWrt?
- 193
9
votes
4
answers
20k
views
Can't communicate between lan ports on openwrt router
I've got a WBMR-HP-G300H Buffalo Airstation router on which I've installed the lates OpenWRT software.
All is working well (ADSL, WIFI etc) except for one niggle. I can't communicate between lan ...
- 209
9
votes
4
answers
36k
views
OpenWrt Configuring Tagged and Untagged VLAN on the Same Port
I have installed OpenWrt on a MikroTik Routerboard RB750UP (AR7240 CPU with AR9330 built in switch). I have included additional details below, but my question is:
How do I configure an untagged and ...
- 91
7
votes
3
answers
10k
views
Is SSLsplit the right tool to intercept and re-encrypt HTTPS traffic on a wifi router?
I'm looking to do a vulnerability research on products running on a variety of devices by intercepting their HTTPS traffic, but I don't want to modify the devices aside from installing a custom cert.
...
- 2,129
7
votes
4
answers
8k
views
Gateway gets stripped from DHCP Reply through OpenVPN tunnel
I have a bridged OpenVPN setup. This is my server config:
port 1194
proto udp
dev tap0
ca /etc/openvpn/easy-rsa/keys/ca.crt
cert /etc/openvpn/easy-rsa/keys/server.crt
key /etc/openvpn/...
- 404
6
votes
1
answer
7k
views
`ssh -NfR` equivalent with dropbear
I want to open a reverse tunnel in background. When using OpenSSH ssh -NfR 9022:127.0.0.1:22 <target> always worked. When I did that with dropbear on my router, it failed like this:
# ssh -NfR ...
- 163
5
votes
4
answers
9k
views
openwrt: Use rdate with NTP servers?
I've noticed that some embedded devices (such as OpenWRT, which runs on Busybox) use rdate to set the system time, instead of NTP. Rdate is an older time protocol, and I'm having trouble finding any ...
- 24.1k
5
votes
4
answers
1k
views
Does anyone use DD-WRT/OpenWRT etc. at their office? [closed]
Does anyone use any of the third party router/AP firmwares (DD-WRT, OpenWRT, Tomato, etc.) in an office environment?
How many users does it handle well?
How long have you been using it?
I understand ...
- 506
5
votes
2
answers
9k
views
OpenWRT - How to redirect all subdomains of a hostname, to the same host, so that it can be reverse proxied?
I have an OpenWRT router setup, 192.168.1.1, with search domain, local (as opposed to the default lan).
I have a server setup, 192.168.1.200, with hostname, server.local.
I have a workstation, 192.168....
- 209
5
votes
3
answers
2k
views
What firmware to choose for ASUS WL-500GP v1
I've found several firmwares out there: OpenWRT, DD-WRT, Tomato and Oleg's. I'm wondering what is the best choice?
Router is working in the home network (desktop through wires, laptop uses WiFi). ...
- 161
5
votes
1
answer
1k
views
qemu with tun virtual networking issues
I'm trying to setup a virtual networking environment using open-wrt qemu and vde2
The script to boot two qemu instances and conenct them together is the following
IMAGE=/home/northpole/openwrt/trunk/...
- 205
5
votes
1
answer
7k
views
strongswan VPN on OpenWrt
Hi I'm running Barrier Breaker version of OpenWRT and I have setup a VPN according to:
http://wiki.openwrt.org/inbox/strongswan.howto
I can connect to the VPN with my iPhone or Mac (to 10.10.1.0/24 ...
- 1,033
4
votes
2
answers
25k
views
How to configure totally open DMZ with OpenWRT?
I have OpenWRT router.
I have NAS in my LAN, which i need to access from WAN and from all computers in the LAN. So, it should be accessible from any computer and it needs to access some of them, too.
...
- 218
4
votes
4
answers
22k
views
How to send mail from an OpenWrt router
I am using OpenWrt 10.03 and need to send "reports" from my router by email.
I have installed sendmail:
# opkg install mini-sendmail
Then I used my ISP's smtp server:
# echo -e "From: [email protected]\...
- 3,177
4
votes
3
answers
3k
views
Show delegated ipv6 prefix at command line in OpenWRT
In OpenWRT’s gui “LuCI“ the delegated IPv6 Prefix provided by the ISP is diplayed in the status page in overview. Normally it will be shown under “IPv6 WAN Status“ in the “Network“ section like
IPv6 ...
- 293
4
votes
2
answers
34k
views
What protocols/ports to open for WinSCP
Which ports (and/or protocols) should be given priority for WinSCP to connect to a *nix machine?
Details:
I have a Windows client running WinSCP, which connects through a WRT54 router (running ...
- 2,900
4
votes
1
answer
2k
views
Does Dropbear know what a ~/.ssh/config file is?
I want to ssh from one host (OpenWrt running Dropbear) to another host on the same LAN that is running open-ssh server and client.
I converted the private open-ssh key of the other host to dropbear ...
- 253
4
votes
2
answers
13k
views
Route an IP from WAN to a host on LAN on OpenWRT
EDIT: I know how to use NAT, I specifically want the server to be reachable on two IP's, one private, one public, with the firewall of the OpenWRT in between, if feasible.
At the office we have ...
- 361
4
votes
2
answers
10k
views
OpenWRT Barrier Breaker - Router does not route
I've upgraded my TP-Link 1043 router to OpenWrt 14.07. Everything is perfect, Wifi and LAN are bridged, LAN machines can access each other by name, I can SSH into the router, and the router can access ...
- 141
4
votes
2
answers
2k
views
How do I set up an IPv6 DMZ with iptables without a static allocation?
I have several networks which are on Comcast's residential network. I need to access those networks from a variety of environments, via an SSH proxy on one of the hosts.
(As it happens I'm using ...
- 251
4
votes
2
answers
7k
views
OpenWRT USB attached disk spin-down
I use a couple of ASUS WL-500GP running OpenWrt Kamikaze 8.09.1 (2.4 kernel)
as small office gateways and firewall. Now I would like to attach USB disks to cache local backup-data during office-hours ...
- 8,668
3
votes
1
answer
1k
views
Force to use specific DNS provider at network
OpenDNS offers a quite simple way for internet filtering by categories. Of course who could get the correct IP address can easily bypass the filter but it would be enough for my expectations.
The ...
- 131
3
votes
3
answers
4k
views
OpenWrt configuration on the remote server
I have 11 openwrt-based accesspoints in the building. Sometimes I need to add a virtual network with custom password. I don't like to iterate through accesspoints to change parameters. This is ...
- 238
3
votes
2
answers
11k
views
Assigning a hostname of the fqdn assigned to a dhcp client with dnsmasq?
I'm aware that you can assign static DNS entry names by doing the following in dnsmasq.conf:
address=/wiki.leerdomain.lan/192.168.1.200
ptr-record=wiki.leerdomain.lan/192.168.1.200
and then ...
- 4,929
3
votes
4
answers
4k
views
OpenWRT Dynamic VLAN
I'm setting up an wireless AP with OpenWRT to support dynamic vlan's, provided by a RADIUS server.
I found a guide on OpenWRT.org which I followed, and with some extra research I'm almost there. The ...
- 167
3
votes
4
answers
19k
views
OpenWRT + OpenVPN client forwarding from lan to vpn not working
I've OpenWRT router with Backfire 10.03.1-rc3 (arch:brcm 2.6 kernel)
I've set up an OpenVPN client connecting my router with workplace lan, and it works nicely, I can connect from router to networks (...
- 133
3
votes
5
answers
2k
views
Recommendation for easy to use router and setup to handle multiple VLANs, to avoid multiple DHCP servers conflicting
I'm trying to setup a network in which each computer must not be able to see the others on the network, only the router. The people involved don't necessarily know each other and don't necessarily ...
- 93
3
votes
1
answer
20k
views
Wireless Multicast Forwarding on OpenWRT
Good day!
We need to connect an STB device over wi-fi to the router. STB uses multicast only. Using udpxy is not possible. Original firmware forwards multicast over wi-fi using mac changing technique....
- 31
3
votes
2
answers
9k
views
openwrt uses a single interface bridge?
My understanding of bridging is that it ties together two interfaces at layer 2. I am looking at a Ubiquiti Nanostation2 running OpenWRT that has an ethernet port 'eth0' and a wifi port 'ath0'. The ...
- 259
3
votes
2
answers
779
views
How to route host traffic over lxc?
Some info updated:
Last login: Wed Aug 31 18:10:24 2022
root@pve:~# ip route
default via 192.168.132.1 dev vmbr0 proto kernel onlink
192.168.132.0/24 dev vmbr0 proto kernel scope link src 192.168.132....
- 31
3
votes
0
answers
977
views
Tunnel only specific port over OpenVPN on OpenWRT-Merlin
My Asus RT-AC87U router is running OpenWRT-Merlin. OpenWRT-Merlin allows you to set up an OpenVPN client and disable NAT so that you have to manually configure the routes for this VPN.
How do I do ...
- 435
3
votes
0
answers
909
views
forward vpn traffic from tun1 to tun0
I've been banging my head on this for a while and gave up trying to figure it out. My knowledge about routing and iptables is just too limited to understand this it seems.
I have configured a split ...
- 31
3
votes
1
answer
862
views
Macvlan-interface and PPP-session
I need to pick up two PPP-sessions on the same interface with different MAC-addresses (on some device with openWrt).
I decided to check macvlans. I created an interface with another MAC-address.
...
- 51
3
votes
1
answer
5k
views
Ingress filtering in Linux traffic control: Redirect traffic to IFB device
I have an openwrt router and I want to shape incoming traffic in order to classify all the traffic addressed to a certain IP address in my home network as low priority. For that purpose I want to ...
- 301
2
votes
1
answer
890
views
iptables not dropping by IP and port?
I have about 4 IP addresses that keep hitting a port on my network randomly I'd like to block. So I added the rules like this to my OpenWRT router:
iptables -I INPUT -s FIRST_PUBLIC_IP -p tcp --dport ...
- 124
2
votes
3
answers
5k
views
How to make a cron script for cleaning up a log file? [closed]
I don't usually do this kind of stuff, so I just have to ask. How do I make a script which checks a log file, lets say it's named log.txt, grabs everything but the first 100 000 lines from it to a new ...
- 21
2
votes
1
answer
7k
views
How to give a server a static IP address with OpenWRT/LuCI?
I have an OpenWRT router and a small home network on 192.168.0.0/24. I have a server which has the static IP 192.168.0.10.
How can I set up an A record in OpenWRT/LuCI for it, to give it a DNS name? ...
- 163
2
votes
1
answer
3k
views
Why does Firefox show SSL_ERROR_BAD_CERT_DOMAIN with a self-signed wildcard certificate, but other browsers do not?
I assigned a self signed wildcard certificate to an OpenWRT (LEDE) router LUCI (uHTTPd) system.
The CA which signed this certificate got added to all browsers as trusted certificate authoritiy.
It ...
- 225
2
votes
1
answer
4k
views
Returning HTTP status 204 for GET /generate_204 using uhttpd?
To deal with the Android captive portal detection for my specific setup, I need to return an HTTP status code 204 whenever I get a GET request for /generate_204. I currently use uhttpd as my webserver,...
- 419
2
votes
1
answer
17k
views
How to enable transparent HTTP/S redirection through proxy using iptables?
My current setup consists of the following elements:
A router flashed with OpenWRT with two interfaces: eth0 is the access to the gateway and eth1 manages the local network (192.128.2.0/24)
A box (...
- 121
2
votes
1
answer
602
views
Is it possible (how?) to Route incoming UDP packets with one target IP to a destination IP that is resolved through a DNS query for a static URL?
I have a set of mobile devices that are configured to send UDP messages to an IP-address that is set in their SRAM. They don't have the capability to either store a URL, or resolve a URL to an IP ...
- 125
2
votes
1
answer
988
views
How to block devices connecting to a specific wireless interface from accessing the internet?
I have configured my OpenWRT WiFi router with two wireless interfaces: wlan0 and wlan0-1. My WAN ethernet interface is eth0.2.
How do I prevent devices that connect to wlan0-1 from accessing the ...
- 123
2
votes
3
answers
3k
views
Finding ip address from mac addess
I have router in bridge mode which is installed Openwrt and I want to find IP address of devices which are connected to the router. Since router is in bridge mode, I can not find IP from DHCP leases, ...
- 21
2
votes
2
answers
1k
views
connect to server in seperated lan (using openwrt)
I am using openwrt with the following setup:
---------------
| |--- LAN1 192.168.1.1/24
WAN 194.X.X.X ---| openwrt-box | ...
- 101
2
votes
1
answer
942
views
How do I configure routing in this mesh scenario?
I've setup the following scenario
All the routers are openwrt routers, and they are connected either via cable (Rout1 <> Rout2), or via wireless (Rout2 <> Rout4)
I would like to be able to ...
- 882
2
votes
1
answer
1k
views
Buffer limit for nginx?
I'm using nginx on an embedded platform (OpenWRT) as a reverse proxy in front of an IP camera, and I'm having an issue where the camera is pushing data to nginx more quickly than nginx is able to off-...
- 1,047