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mdns-repeater-mikrotik/README.md

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2022-07-05 07:57:40 +02:00
# docker-mdns-repeater-mikrotik
mdns-repeater in mikrotik container
2022-07-05 08:20:32 +02:00
Based on:
https://github.com/geekman/mdns-repeater
https://github.com/monstrenyatko/docker-mdns-repeater
This is work in progress, but you can base your config on that.
## Mikrotik config
Based on official docs https://help.mikrotik.com/docs/display/ROS/Container
Instead of adding `veth2` to docker bridge i've added it to my home-lan bridge `BR1`.
Veth2 is added as tagged port with two vlans (20,100), so in container on `eth0` i will create two vlan interfaces `eth0.20` and `eth0.100` with active dhcp client for IP leese, please look at `run.sh`.
```
/interface/bridge/port/print
Flags: I - INACTIVE; H - HW-OFFLOAD
Columns: INTERFACE, BRIDGE, HW, PVID, PRIORITY, PATH-COST, INTERNAL-PATH-COST, HOR
IZON
# INTERFACE BRIDGE HW PVID PRIORITY PATH-COST IN HORIZON
10 veth2 BR1 1 0x80 10 10 none
/interface/bridge/vlan/print
Flags: D - DYNAMIC
Columns: BRIDGE, VLAN-IDS, CURRENT-TAGGED, CURRENT-UNTAGGED
# BRIDGE VLAN-IDS CURRENT-TAGGED CURRENT-UNTAGGED
0 BR1 100 BR1
veth2
3 BR1 20 BR1
veth2
4 D BR1 1 BR1
veth2
```
## Build & pack container
```
docker buildx build --no-cache --platform linux/arm/v6 -t mdns .
docker save mdns -o mdns.tar
2022-07-05 08:20:32 +02:00
8.8M mdns.tar # size after pack
```
## Logs from running container
```
log print where topics~"container"
jun/29 22:01:28 container,info,debug create interface eth0.20
jun/29 22:01:28 container,info,debug bring up eth0.20 interface
jun/29 22:01:28 container,info,debug /app/run.sh: line 25: kill: (19) - No such process
jun/29 22:01:28 container,info,debug starting dhcp client on eth0.20
jun/29 22:01:28 container,info,debug udhcpc: started, v1.35.0
jun/29 22:01:29 container,info,debug udhcpc: broadcasting discover
jun/29 22:01:29 container,info,debug udhcpc: broadcasting select for 10.0.20.27, server 10.0.20.1
jun/29 22:01:29 container,info,debug udhcpc: lease of 10.0.20.27 obtained from 10.0.20.1, lease time 86400
jun/29 22:01:29 container,info,debug create interface eth0.100
jun/29 22:01:29 container,info,debug bring up eth0.100 interface
jun/29 22:01:29 container,info,debug /app/run.sh: line 25: kill: (34) - No such process
jun/29 22:01:29 container,info,debug starting dhcp client on eth0.100
jun/29 22:01:29 container,info,debug udhcpc: started, v1.35.0
jun/29 22:01:29 container,info,debug udhcpc: broadcasting discover
jun/29 22:01:30 container,info,debug udhcpc: broadcasting select for 10.0.100.244, server 10.0.100.1
jun/29 22:01:30 container,info,debug udhcpc: lease of 10.0.100.244 obtained from 10.0.100.1, lease time 86400
jun/29 22:01:30 container,info,debug + exec /bin/mdns-repeater -f eth0.20 eth0.100
jun/29 22:01:30 container,info,debug mdns-repeater: dev eth0.20 addr 10.0.20.27 mask 255.255.255.0 net 10.0.20.0
jun/29 22:01:30 container,info,debug mdns-repeater: dev eth0.100 addr 10.0.100.244 mask 255.255.255.0 net 10.0.100.0
jul/01 21:49:34 container,info,debug bring up eth0.20 interface
jul/01 21:49:34 container,info,debug /app/run.sh: line 25: kill: (22) - No such process
jul/01 21:49:34 container,info,debug starting dhcp client on eth0.20
jul/01 21:49:34 container,info,debug udhcpc: started, v1.35.0
jul/01 21:49:34 container,info,debug udhcpc: broadcasting discover
jul/01 21:49:34 container,info,debug udhcpc: broadcasting select for 10.0.20.27, server 10.0.20.1
jul/01 21:49:34 container,info,debug udhcpc: lease of 10.0.20.27 obtained from 10.0.20.1, lease time 86400
jul/01 21:49:34 container,info,debug bring up eth0.100 interface
jul/01 21:49:34 container,info,debug /app/run.sh: line 25: kill: (40) - No such process
jul/01 21:49:34 container,info,debug starting dhcp client on eth0.100
jul/01 21:49:34 container,info,debug udhcpc: started, v1.35.0
jul/01 21:49:34 container,info,debug udhcpc: broadcasting discover
jul/01 21:49:35 container,info,debug udhcpc: broadcasting select for 10.0.100.244, server 10.0.100.1
jul/01 21:49:35 container,info,debug udhcpc: lease of 10.0.100.244 obtained from 10.0.100.1, lease time 86400
jul/01 21:49:35 container,info,debug + exec /bin/mdns-repeater -f eth0.20 eth0.100
jul/01 21:49:35 container,info,debug mdns-repeater: dev eth0.20 addr 10.0.20.27 mask 255.255.255.0 net 10.0.20.0
jul/01 21:49:35 container,info,debug mdns-repeater: dev eth0.100 addr 10.0.100.244 mask 255.255.255.0 net 10.0.100.0
```