tcpdump mailing list archives
Re: print_llc code question
From: Alexander Dupuy <alex.dupuy () mac com>
Date: Sun, 06 Sep 2009 12:31:24 -0400
Guy Harris writes:
s for non-Ethernet networks using 802.2, RFC 1042, "Standard for the transmission of IP datagrams over IEEE 802 networks" replaced that scheme with a scheme using SNAP headers with the standard Ethertype for IP. So I don't know who actually *used* an 802.2 header without a SNAP header when sending IP datagrams.
I believe that HP-UX may have used this Ethernet framing in the 1980s - they had a fancy version of ARP called HP Probe (I think) that was used to determine the MAC address and which framing a destination IP address supported (classic IP/Ethernet - or either 802.2 and/or SNAP encoding) - so that on a single Ethernet, an HP system could be using both (or all three?) IP framing type mechanisms. I don't remember which versions of HP-UX had this (it was on Motorola 68K CPUs, I think). @alex -- mailto:alex.dupuy () mac com - This is the tcpdump-workers list. Visit https://cod.sandelman.ca/ to unsubscribe.
Current thread:
- print_llc code question Jean-Louis CHARTON (Sep 01)
- Re: print_llc code question Guy Harris (Sep 01)
- Re: print_llc code question Jean-Louis Charton (Sep 07)
- <Possible follow-ups>
- Re: print_llc code question Alexander Dupuy (Sep 07)
- Re: print_llc code question Guy Harris (Sep 01)