34 lines
975 B
Markdown
34 lines
975 B
Markdown
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# Setup dummy network interfaces
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Note: Set two addresses so we could use one as source and another as destination
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```
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sudo ip link add eth2 type dummy
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sudo ip addr add 192.168.1.200/24 dev eth2
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sudo ip addr add 192.168.1.201/24 dev eth2
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sudo ip link set eth2 up
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sudo ifconfig eth2 multicast
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```
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# Dig on a specified interface
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```
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dig +short -b 192.168.1.200 -p 5353 @224.0.0.251 myesp.local
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```
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or a reverse query:
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```
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dig +short -b 192.168.2.200 -p 5353 @224.0.0.251 -x 192.168.1.200
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```
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# Run avahi to browse services
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Avahi needs the netif to have the "multicast" flag set
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```bash
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david@david-comp:~/esp/idf (feature/mdns_networking_socket)$ avahi-browse -a -r -p
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+;eth2;IPv6;myesp-service2;Web Site;local
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+;eth2;IPv4;myesp-service2;Web Site;local
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=;eth2;IPv6;myesp-service2;Web Site;local;myesp.local;192.168.1.200;80;"board=esp32" "u=user" "p=password"
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=;eth2;IPv4;myesp-service2;Web Site;local;myesp.local;192.168.1.200;80;"board=esp32" "u=user" "p=password"
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```
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