README
¶
bcast-forward
bcast-forward is a Linux command line tool that forwards UDP broadcast packets
with destination IP 255.255.255.255 to a specified list of unicast addresses.
For example, it can be used for playing old LAN games, that use broadcasts to
discover game servers, over a VPN tunnel. bcast-forward uses an IP/UDP raw
socket for receiving and sending packets. For a pcap version, see
bcast-forward-pcap.
Installation
You can download and install bcast-forward with its dependencies to your GOPATH or GOBIN with the go tool:
$ go install github.com/hwipl/bcast-forward/cmd/bcast-forward
Usage
You can run bcast-forward with the following command line arguments:
-d IPs
forward broadcast packets to this comma-separated list of IPs, e.g.,
"192.168.1.1,192.168.1.2"
-keep-source-ip
keep source address
-p port
only forward packets with this destination port (default 6112)
-s IP
rewrite source address to this IP
By default, bcast-forward rewrites the source IP address in forwarded packets
to an IP address that is determined by the forwarding host's routing to each
destination unicast address, usually an address of the outgoing network
interface. Alternatively, you can specify a single IP address with -s that
will be used as source IP address for all destination addresses. If you want to
keep the original sender's IP address, you can disable source IP address
rewriting completely with -keep-source-ip.
Directories