IPV6 Proxy Cache Error

[spetrillo]

Hello all,

I do not use IPV6 in my setup. I am seeing the following errors in my cache log:

2021-06-18T00:30:23   squid   | SendEcho ERROR: sending to ICMPv6 packet to [2603:1036:302:4094::2]: (65) No route to host

Where is this coming from and how do I get rid of these?

Thanks,
Steve