On 12/3/20 8:17 PM, Andreas Roeseler wrote:
> diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
> index 005faea415a4..313061b60387 100644
> --- a/net/ipv4/icmp.c
> +++ b/net/ipv4/icmp.c
> @@ -984,20 +984,121 @@ static bool icmp_redirect(struct sk_buff *skb)
> static bool icmp_echo(struct sk_buff *skb
Modify the icmp_rcv function to check for PROBE messages and call
icmp_echo if a PROBE request is detected.
Modify the existing icmp_echo function to respond to both ping and PROBE
requests.
This was tested using a custom modification of the iputils package and
wireshark. It supports IPV4 probing
