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@dvl Ok, so following advice at the end of this thread https://forums.freebsd.org/threads/broadcom-nic-leads-to-vnet-jails-being-unable-to-make-dns-requests.101534/
if I disable txcsum on the vnet0 interface in the jail it all works now. The reason existing VNET jails work is they use tailscale for DNS.
Hi everyone, I hope you're all well. I just wanted to raise a post here about a problem I'm experiencing after upgrading a server to 15.0-RELEASE where jails seem to be unable to make DNS requests. I first raised this issue as I thought it was a problem with how BastilleBSD handles networking...
@tehpeh That looks promising.
Also, 'promisc up' seems odd - I'm guessing that enables 'promiscuous', yet I have not read the docs on that.
I'll go through that link again and try it soon.
@dexter In short, I'm comparing
AMD EPYC 7261 @2.5GHz
and
E5-2699 v3 @ 2.30GHz
[23:23 r7425-01 dvl ~] % grep -i EPYC /var/run/dmesg.boot
CPU: AMD EPYC 7261 8-Core Processor (2495.44-MHz K8-class CPU)
CPU: AMD EPYC 7261 8-Core Processor (2495.31-MHz K8-class CPU)
Cisco Talos
Tim Preston