[PATCH net-next 7/8] selftests: traceroute: Test traceroute with different source IPs

[David Ahern]

On 9/1/25 2:30 AM, Ido Schimmel wrote:
> When generating ICMP error messages, the kernel will prefer a source IP
> that is on the same subnet as the destination IP (see
> inet_select_addr()). Test this behavior by invoking traceroute with
> different source IPs and checking that the ICMP error message is
> generated with a source IP in the same subnet.
> 
> Reviewed-by: Petr Machata <petrm at nvidia.com>
> Signed-off-by: Ido Schimmel <idosch at nvidia.com>
> ---
>  tools/testing/selftests/net/traceroute.sh | 13 +++++++++----
>  1 file changed, 9 insertions(+), 4 deletions(-)
> 

Reviewed-by: David Ahern <dsahern at kernel.org>