18 lines
844 B
Markdown
18 lines
844 B
Markdown
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# dlnaprox
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This program is a DLNA proxy. It proxies UDP multicast packets to and from the
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specified networks. These two networks are knowns as the inner and the outer
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network. The basic assumption is that the inner network can send normal IP
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requests to the outer network, but not visa versa. For example, a Docker
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container on a bridged docker network can only be accessed through forwarded
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ports. However, if it sends a request to an address on the same network as the
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host system, by default, the other host is reachable. This program forwards
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multicast broadcasts to 239.255.255.250:1900 to the other network. Since the
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spec says that responses to the broadcast should sent to port that originated
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it. So we keep a map of sockets so we can correctly proxy these responses.
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## Usage
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```bash
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dlnaprox -i 172.17.0.0/16 -o 192.168.0.0/24
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```
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