Bug 249400

Summary: The last jail created using VNET has ARP problem
Product: Base System Reporter: fred.ha11
Component: kernAssignee: freebsd-bugs (Nobody) <bugs>
Status: Closed DUPLICATE    
Severity: Affects Some People    
Priority: ---    
Version: 12.1-STABLE   
Hardware: amd64   
OS: Any   
Attachments:
Description Flags
/etc/jails.conf none

Description fred.ha11 2020-09-17 16:03:42 UTC
Created attachment 218027 [details]
/etc/jails.conf

12.2-BETA has a new issue with VNET that 12.1-RELEASE didn't have.

Initially when a list of jails are created all can be pinged. However, after the default ARP timeout, the last jail attached to the bridge fails to respond. If the ARP for the last jail is statically set (arp -s) it will again respond to pings. The problem only effects the last jail attached to the bridge regardless of the number of jails or which one is last.

My /etc/jails.conf is attached
Comment 1 fred.ha11 2020-09-17 18:34:03 UTC

*** This bug has been marked as a duplicate of bug 249399 ***