How does OpenWrt help with network traffic control?
This HowTo will help you understand and set up traffic control on your router. It is one strategy to address problems caused by Network congestion . Note: As of late 2016, the OpenWrt SQM-QoS algorithms using cake or fq_codel have nearly eliminated bufferbloat.
Can you send network traffic from OpenWrt to syslog-ng?
Sending network traffic data of your home network from OpenWRT to syslog-ng is a great thing. But what is more cooler is to send it to Elasticsearch and create visualizations and reports. You can create nice visualizations once you have proper index template including ECS compatible data type mapping.
Is it possible to sniff mirror Lan traffic?
Is it possible to sniff (with tcpdump) or mirror LAN traffic that doesn’t get routed to WAN using openWRT? Say I have two PCs connected to LAN ports and I want to sniff on traffic one PC is sending to the other one? — tee feature is of no use in this case as nothing gets routed and therefore iptables cannot pick it.
Can you use iptables to sniff on LAN traffic?
Say I have two PCs connected to LAN ports and I want to sniff on traffic one PC is sending to the other one? — tee feature is of no use in this case as nothing gets routed and therefore iptables cannot pick it. I have read somewhere that such thing might be possible by implementing VLANs but frankly I don’t understand how.
What’s the best tool to monitor bandwidth in OpenWrt?
Interactive bandwidth measurement and monitoring can be achieved with the two small tools: bmon and iftop. They require less system resources on your OpenWrt system. bmon is available as a package for most platforms and has two interfaces: CLI and HTML.
How does OpenWrt work with a Soho router?
SOHO routers are usually not really resourceful, neither is mine. Therefore I needed a solution using as little resource as possible but still capable to answers that questions. My solution uses connection tracking data from an OpenWRT router. Offload the information from OpenWRT to a central syslog server.
What are the targets for iptables in OpenWrt?
Contains some matches and TARGETs for iptables: CLASSIFY, dscp/DSCP, ecn/ECN, length, mac, mark/MARK, statistic, tcpmms, tos/TOS, ttl/ TTL, unclean l7-protocols optional! If you want to match Layer 7 content
Which is the best QoS algorithm for OpenWrt?
It is one strategy to address problems caused by Network congestion . Note: As of late 2016, the OpenWrt SQM-QoS algorithms using cake or fq_codel have nearly eliminated bufferbloat. SQM frequently performs better in all cases – upload and download – than arduous manual QoS settings described below.
Is there any difference between OpenWrt and Netfilter?
In principle it works exactly like netfilter rules, the only difference is that matches are called classifiers and the TARGET are called VERDICT in available documentation. However, since it is possible to do the filtering entirely with netfilter (almost, doesn’t forget Layer 2 packets like arp), this does not really matter.