https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=295986
Bug ID: 295986
Summary: bge: for vnet jails, ifconfig -txcsum is required
Product: Base System
Version: 14.3-STABLE
Hardware: Any
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: [email protected]
Reporter: [email protected]
In order for DNS to work in a vnet jail, `ifconfig -txcsum` is required
Background:
https://forums.freebsd.org/threads/broadcom-nic-leads-to-vnet-jails-being-unable-to-make-dns-requests.101534/
The URL contains my jail configuration. I apologize: I have not yet tried to
create a simpler test case.
If the jail uses unbound on the host for DNS, DNS works.
If the jail uses an off-host solution (e.g. my gateway), DNS does not work.
When configured to use off-host DNS, and it is failing, the following change to
the cloned NIC allows DNS to work:
`sudo ifconfig epair47a -txcsum`
I'm happy to create a more simple solution and test. The host is question is
not used for anything else at the moment.
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