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Update README.md

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Joseph C. Lehner 2024-01-11 13:02:54 +01:00 • committed by GitHub
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@ -36,6 +36,10 @@ Options (-i, and -f or -c are mandatory):
-V Print version and exit
-L List network interfaces
-h Show this screen
When using -c, the environment variables IP, PORT, NETMASK
and MAC are set to the device IP address, TFTP port, subnet
mask and MAC address, respectively.
```
### Using nmrpflash
@ -156,6 +160,14 @@ process has finished.
###### "Timeout while waiting for ACK(0)/OACK."
`nmrpflash` didn't receive a response to the initial TFTP upload request. This
either indicates an IP configuration issue, or a firewall is blocking the TFTP
packets from reaching the device running `nmrpflash`.
If you do have an active firewall, either disable it before running `nmrpflash`,
or make sure that incoming packets for port 69 aren't being blocked.
The device did not respond to `nmrpflash`'s TFTP upload request. By default,
`nmrpflash` will assign `10.164.183.252` to the target device, while adding `10.164.183.253`
to the network interface specified by the `-i` flag. You can use `-a` to change the IP