From owner-freebsd-questions Thu Jul 13 15:31:30 1995 Return-Path: questions-owner Received: (from majordom@localhost) by freefall.cdrom.com (8.6.10/8.6.6) id PAA00372 for questions-outgoing; Thu, 13 Jul 1995 15:31:30 -0700 Received: from mercury.Sun.COM (mercury.Sun.COM [192.9.25.1]) by freefall.cdrom.com (8.6.10/8.6.6) with ESMTP id PAA00363 for ; Thu, 13 Jul 1995 15:31:23 -0700 Received: from Eng.Sun.COM by mercury.Sun.COM (Sun.COM) id PAA27944; Thu, 13 Jul 1995 15:30:34 -0700 Received: from frstprsn.Eng.Sun.COM (firstperson.Eng.Sun.COM) by Eng.Sun.COM (5.x/SMI-5.3) id AA08553; Thu, 13 Jul 1995 15:28:44 -0700 Received: from fyeung3.Eng.Sun.COM by frstprsn.Eng.Sun.COM (5.x/SMI-SVR4) id AA08587; Thu, 13 Jul 1995 15:28:44 -0700 Received: by fyeung3.Eng.Sun.COM (5.x/SMI-SVR4) id AA01266; Thu, 13 Jul 1995 15:28:40 -0700 Date: Thu, 13 Jul 1995 15:28:40 -0700 From: fyeung@frstprsn.Eng.Sun.COM (Francis Yeung) Message-Id: <9507132228.AA01266@fyeung3.Eng.Sun.COM> To: questions@FreeBSD.org Subject: iflayer X-Sun-Charset: US-ASCII Sender: questions-owner@FreeBSD.org Precedence: bulk Greetings, In the earlier version of the BSD 4.2, 4.3 code, there is a kernel function called iflayer. In the ifnet structure, there are fields - if_lower, if_upper etc which allow the use of upcall and downcall to access the next higher or lower module directly in the kernel. I wonder if there exists a patch for iflayer functionality in the BSD 2.x release. In addition, what happen to the arptab which is no longer a symbol in the /dev/kmem and nlist ? What is the equivalent of arptab ? Is there a snmp agent for the BSD 2.x release ? I have developed a snmp agent for the BSD2.0 without the ARP mib which uses the arptab or equivalent information. Any information for arptab will be very helpful. I have seen some comment (grep arptab *) in the BSD2.0 kernel making refernece to arptab but there is no arptab in the code itself. Please email me directly. Thank you for your help. Francis