Fixed
Created: Sep 8, 2023
Updated: Oct 25, 2023
Resolved Date: Sep 24, 2023
Found In Version: 10.21.20.19
Severity: Standard
Applicable for: Wind River Linux LTS 21
Component/s: Userspace
Using arping to send unsolicited ARP REPLY packets (-A), the packets are not actually being sent.
The -U option that sends ARP REQUEST packets is still working.
this upstream commit (https://github.com/iputils/iputils/commit/86ed08936d49e2c81ef49dfbd02aca1c74d0c098) fixes the issue.
# Configure intel-x86-64 project and add IMAGE_INSTALL_append = " iputils tcpdump"
# Build and deploy wrlinux-image-small
# Open two terminals and SSH into the target.
In the first terminal, run tcpdump:
$ tcpdump -env -i eth0 arp | grep <target-IP>
In the second one, run arping:
$ /bin/arping -q -c 4 -A -I eth0 -s <target-IP> <destination-IP>
In my case, I used my workstation IP as "destination-IP"
tcpdump will show no packets being sent, after applying this upstream commit (https://github.com/iputils/iputils/commit/86ed08936d49e2c81ef49dfbd02aca1c74d0c098), the behavior is returned to normal.
