On Jul 12, 2018, at 11:33 AM, Petr Vorel <pvo...@suse.cz> wrote:
> +#ifdef PCAP_SUPPORT_SLL_V2
> + char ifname[IF_NAMESIZE];
> + if (if_indextoname(EXTRACT_BE_U_6(sllp->sll_ifindex), ifname))
> + ND_PRINT("IFNAME %s ", ifname);
> +#endif
What happens if you capture traffic on machine A and print it on machine B,
where machines A and B have different sets of network interfaces?
(This is why pcapng has Interface Description Blocks - so that the list of
interfaces is part of the file, so you use *that*, rather than the
configuration of interfaces on the machine running the program reading the
capture, to get interface names.)
Perhaps this should be done *only* for live captures, *not* for reading
savefiles.
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