All Questions
28
questions
2
votes
1
answer
195
views
Preserve incoming interface for answers in openwrt router
I have a Openwrt router with three interfaces:
interface br-lan: IP: 172.16.21.1 in a LAN network (172.16.21.0/24).
interface eth1: IP: 172.16.22.2 a WAN network (172.16.22.0/30) with Internet access....
- 31
0
votes
1
answer
1k
views
OpenVPN and IPTABLES - How to assign lan (vpn) gateway to clients
I am trying to set up my openvpn network but I have a problem.
My LAN configuration is as follows:
main router Zyxel 192.168.1.1 acting as gateway (vdsl connection) and access point;
openwrt router ...
1
vote
0
answers
232
views
Redirect all http traffic to static address in OpenWrt on Raspberry
I have an ISP router with IP 192.168.1.254.
I installed OpenWrt on my Raspberry PI 3 B.
Raspberry is connected to the ISP router via ethernet
On the Raspberry I configured 2 networks:
wan
wifi
...
- 111
1
vote
0
answers
222
views
OpenWRT: Redirect traffic for single clients to different gateway
I am currently reversing a wifi toy. To analyse the devices protocol I would like to redirect its traffic to a linux machine (kali). Then I am using sslsplit to peek into the ssl traffic (CA.cert is ...
- 11
0
votes
1
answer
105
views
Preventing connections to specific host on LAN
I have a NAS running a web app on port 8081, with IP 192.168.0.2, and a reverse proxy server (separate machine) with IP 192.168.0.3. In order to access the web app (which I wouldn't want to expose to ...
- 1,041
0
votes
1
answer
349
views
Captive portal (nodogsplash) stops working if iptables - hashlimit rules entered (OpenWRT)
I have setup a hotspot device with openwrt. It has nodogsplash installed for hotspot functions and iptables for limit bandwith. When i was testing speed limit script, hotspot was disabled for testing ...
1
vote
0
answers
341
views
OpenWRT, iptables and ipset rule for redirect destination host to another ip?
How to redirect destination host to another ip?
This rule don't work:
iptables -t nat -I PREROUTING -m set --match-set redirectsites src,dst -j DNAT --to-destination ipaddr
Could you explain, what ...
- 11
0
votes
0
answers
120
views
iptables can't match https traffic
I got a WiFi router(xiaomi HD) with customized openwrt OS and I added some iptables rules trying to count https traffic, but it seems the rule can't match https traffic.
Here are the rules(on router)...
1
vote
1
answer
5k
views
Properly block ports on openwrt
I want to block certain protocols to be used, and I do this by blocking their ports such as 53.
I tried to edit /etc/config/firewall adding:
config rule 'stopdns'
option name 'stopdns'
...
- 23
5
votes
2
answers
3k
views
TLS Handshake resets for some web sites when using OpenWRT router
Currently I'm facing a very strange issue with my router. I have TP-Link TL-WDR4300 rev. 1.7 running OpenWRT 18.06.1.
The problem originally started 1-2 months ago, when I had OpenWRT 15.05, and the ...
0
votes
2
answers
201
views
Linux IP tables on Open-WRT: forwarding vs stateful packet filtering
I followed the Unix and Linux System Administration Handbook, 5th edition's complete example for iptables. The stateful packet filtering has allowed me to print remotely on my MakerBot, but I could ...
2
votes
1
answer
814
views
OpenWRT port redirection
I have an OpenWRT router.
What I need to achieve is a port redirection within my LAN zone. What I mean is, every time I hit local address on port 40413 it should to be redirected to 192.168.1.111:...
- 21
0
votes
2
answers
159
views
Server substitution. Emulating internet server
I have two networks sequent networks both hidden under own NAT 192.168.31.0/24 -> 192.168.33.0/24 -> Internet
I have a TCP server on 192.168.33.35 and a client on 192.168.31.32
A client does a TCP ...
0
votes
0
answers
1k
views
iptables PREROUTING and POSTROUTING doesn't seem to forward any packets (OpenWRT)
I am trying to mirror all packets sent or received by Device B and send them to Device A for logging. I have an OpenWRT acting as a wireless access point, and I have issued the following commands to ...
- 101
0
votes
1
answer
234
views
Can I encapsulate or alter UDP length?
While packet capturing on a game server I noticed my connection is sending a constant stream of UDP packets all of which roughly 64 bytes in length. How can I merge these packets to send a stream of ...
- 53