Zero-configuration networking (zeroconf) is a methodology and a set of special technologies that automatically creates a usable computer network based on the Internet Protocol Suite (TCP/IP) when computers or network peripherals are interconnected. It does not require manual operator intervention or special configuration servers. Zeroconf
There are different Zeroconf “solutions” that are incompatible because they use different ways of network communication.
OpenWrt offers several different packages supporting the different Zeroconfig implementations:
Many programs can be compiled with zeroconf support. However due to size restrictions this support is most likely deactivated by default. Compile your own image.
Currently there is little DNS-SD support on Windows, since it uses incompatible UPnP SSDP.
Zero configuration can be important for mobile wireless ad-hoc networks and internal service announcements, address and routing.
In OpenWrt since r41345
umdns: add the new openwrt mdns daemon this is still wip, you can use the following ubus calls. ubus call umdns update # triggers a scan ubus call umdns browse # look at the currenlty cached records ubus call umdns hosts # look at the currenlty cached hosts
avahi-daemon: mDNS daemon avahi-utils: lookup utility avahi-browse
In order to announce http and ssh services to the network, do:
opkg update opkg install avahi-daemon-service-ssh avahi-daemon-service-http
Install the mdnsresponder package:
# opkg update # opkg install mdnsresponder
Edit the /etc/mDNSResponder.conf file, which contains a list of service descriptions:
"SSH Service" _ssh._tcp. local 22 Local SSH Service "Web Service" _http._tcp. local 80 Local Web Service
Once all your services are configured, you can enable and start the mDNSResponder:
# /etc/init.d/mDNSResponder enable # /etc/init.d/mDNSResponder start