Fix pcap error

[ecaron]

First mentioned on hortinstein/node-dash-button#6
Figure out how to reproduce it, and then stop it.

[ecaron]

Here's the error I'm getting:

node_pcap: EthernetFrame() - Don't know how to decode ethertype 34824
node_pcap: EthernetFrame() - Don't know how to decode ethertype 34824
node_pcap: EthernetFrame() - Don't know how to decode ethertype 34824
node_pcap: EthernetFrame() - Don't know how to decode ethertype 34824
node_pcap: EthernetFrame() - Don't know how to decode ethertype 34824
node_pcap: EthernetFrame() - Don't know how to decode ethertype 34824
node_pcap: EthernetFrame() - Don't know how to decode ethertype 34824

Typically shows up when the script runs overnight.

[ecaron]

Considering this fixed by hortinstein/node-dash-button#6 and node-pcap/node_pcap#195

[LondonSi72]

Hi - sorry for the real newbie question, but I'm interested in implementing your fix for the logging issue in node_pcap. I'm using the node-dash-button and node-red-contrib-amazondash packages for a dash button home automation implementation using a Raspberry Pi Zero W. I have everything working but I get excessive messages from node_pcap regarding ethertype 34924 and after a few hours the system crashes. (I found the wifi in Pi Zero w works, whereas the wifi on the Pi 3 doesn't see the packets from the dash button. I don't want to connect to the router directly via ethernet cable if I can avoid it.) I found your fix for silencing the logging in pcap, but I can't figure out how to implement it. I installed libpcap via apt-get, as instructed in the node-dash-button readme.md, but I suspect I need to re-install it via github and issue a git command to get your changes. Can you help me with what I need to do to implement this properly?

Many thanks
Si