Date: Wed, 1 Mar 2023 21:10:19 +0000 From: "Scheffenegger, Richard" <Richard.Scheffenegger@netapp.com> To: Michael Tuexen <michael.tuexen@lurchi.franken.de>, "Scheffenegger, Richard" <rscheff@freebsd.org> Cc: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org> Subject: RE: BPF to filter/mod ARP Message-ID: <PH0PR06MB7639AAFFF7F38C9AD6211ECA86AD9@PH0PR06MB7639.namprd06.prod.outlook.com> In-Reply-To: <02B65D42-5097-421A-B951-C947C5DBA465@lurchi.franken.de> References: <b076d803-bc77-f3e2-8452-e85e3ac296b6@freebsd.org> <02B65D42-5097-421A-B951-C947C5DBA465@lurchi.franken.de>
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>> On 1. Mar 2023, at 21:33, Scheffenegger, Richard <rscheff@freebsd.org> wrote: >> >> Hi group, >> >> Maybe someone can help me with this question - as I am usually only looking at L4 and the top side of L3 ;) > >> In order to validate a peculiar switches behavior, I want to adjust some fields in gracious arps sent out by an interface, after a new IP is assigned or changed. > Wouldn't scapy allow you to do this kind of testing? Unfortunately not - I don't want to forge another packet, I want to make sure only the specific one is being sent, with the standard GARP retransmissions and so on. Richard
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