From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 19603 invoked by alias); 30 Jul 2007 11:31:41 -0000 Received: (qmail 19590 invoked by uid 22791); 30 Jul 2007 11:31:40 -0000 X-Spam-Check-By: sourceware.org Received: from mx2.lvl7.com (HELO lvl7-trend01.lvl7.com) (66.192.95.83) by sourceware.org (qpsmtpd/0.31) with ESMTP; Mon, 30 Jul 2007 11:31:34 +0000 Received: from lvl7in-mail01.lvl7.com ([10.240.1.18]) by lvl7-trend01.lvl7.com with InterScan VirusWall; Mon, 30 Jul 2007 07:31:31 -0400 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Date: Mon, 30 Jul 2007 11:31:00 -0000 Message-ID: From: "Alok Singh" To: Mailing-List: contact ecos-discuss-help@ecos.sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: ecos-discuss-owner@ecos.sourceware.org Subject: [ECOS] FW: [ECOS] ECOS: Free BSD - Default gateway entry , duplicate ARP//llinfo entries - X-SW-Source: 2007-07/txt/msg00213.txt.bz2 Hi, Any comments/hints/clues from routing experts out there!! regards, Alok -----Original Message----- From: ecos-discuss-owner@ecos.sourceware.org [mailto:ecos-discuss-owner@ecos.sourceware.org] On Behalf Of Alok Singh Sent: Sunday, July 29, 2007 7:20 AM To: ecos-discuss@ecos.sourceware.org Subject: [ECOS] ECOS: Free BSD - Default gateway entry , duplicate ARP//llinfo entries - Hi, I'm using latest cvs code. This is the same issue I mentioned earlier, where I'm not able to access the box from a different subnet. I debugged the issue further, and I see two llinfo entries corresponding to the default gateway. One is created as soon as the default routing entry is configured. This has mac address as "0". Default gateway points to this entry. When I ping from other network, then arp of gateway is resolved. And this creates another entry in the routing table. But default gateway routing entry is still pointing to the old one that ahs mac address as 0. Hence for every ping, I see an ARP request going out of the box. My GW is 10.240.3.1. I'm providing the ROUTE TREE dump below. Please have a look. Look for key field in the the dump to see the duplication. I've verified that for IP addresses other than G/W, only one ARP entry is present( 10.240.3.136). MY box IP address is:10.240.3.156. I've enabled the debugs in icmp_input, and I can see that the imcp echo reply is being sent out to IP in different subnet-=20 icmp_input from 10.240.10.236 to 10.240.3.156, len 40 icmp_input, type 8 code 0 icmp_send dst 10.240.10.236 src 10.240.3.156 ********************************************* Route tree for AF_INET rtentry=3D0x805f8d10 flags=3D0x10003 refcnt=3D0 use=3D7 expire=3D0 key=3D[16,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0] mask=3D[] gw=3D[16,2,0,0,10,240,3,1,128,60,139,80,128,33,93,72] ifp=3D0x805612d4 (dtl) ifa=3D0x805f8f30 ifa_addr=3D[16,2,0,0,10,240,3,156,0,0,0,0,0,0,0,0] ifa_dsta=3D[16,2,0,0,10,240,3,255,0,0,0,0,0,0,0,0] ifa_mask=3D[7,0,0,0,255,255,255] flags=3D0x101, refcnt=3D5, metric=3D0 genmask=3D[NULL] gwroute=3D0x805f8c40 llinfo=3D0x00000000 ------------ rtentry=3D0x805f8e90 flags=3D0x101 refcnt=3D3 use=3D0 expire=3D30 key=3D[16,2,0,0,10,240,3,0,0,0,0,0,0,0,0,0] mask=3D[7,255,255,255,255,255,255] gw=3D[54,18,0,1,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0] ifp=3D0x805612d4 (dtl) ifa=3D0x805f8f30 ifa_addr=3D[16,2,0,0,10,240,3,156,0,0,0,0,0,0,0,0] ifa_dsta=3D[16,2,0,0,10,240,3,255,0,0,0,0,0,0,0,0] ifa_mask=3D[7,0,0,0,255,255,255]=3D flags=3D0x101, refcnt=3D5, metric=3D0 genmask=3D[NULL] gwroute=3D0x00000000 llinfo=3D0x00000000 -------------- rtentry=3D0x805f89c0 flags=3D0x20405 refcnt=3D0 use=3D0 expire=3D4029 key=3D[16,2,0,0,10,240,3,1,0,0,0,0,0,0,0,0] mask=3D[NULL] gw=3D[54,18,0,1,6,0,6,0,0,15,181,52,144,196,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0] ifp=3D0x805612d4 (dtl) ifa=3D0x805f8f30 ifa_addr=3D[16,2,0,0,10,240,3,156,0,0,0,0,0,0,0,0] ifa_dsta=3D[16,2,0,0,10,240,3,255,0,0,0,0,0,0,0,0] ifa_mask=3D[7,0,0,0,255,255,255] flags=3D0x101, refcnt=3D5, metric=3D0 genmask=3D[NULL] gwroute=3D0x00000000 llinfo=3D0x805f8940 la_rt=3D0x805f89c0 la_hold=3D0x00000000, la_asked=3D0x0 ---------------------- rtentry=3D0x805f8c40 flags=3D0x2040d refcnt=3D1 use=3D0 expire=3D2999 key=3D[16,2,0,0,10,240,3,1,128,60,139,80,128,33,93,72] mask=3D[NULL] gw=3D[54,18,0,1,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0] ifp=3D0x805612d4 (dtl) ifa=3D0x805f8f30 ifa_addr=3D[16,2,0,0,10,240,3,156,0,0,0,0,0,0,0,0] ifa_dsta=3D[16,2,0,0,10,240,3,255,0,0,0,0,0,0,0,0] ifa_mask=3D[7,0,0,0,255,255,255] flags=3D0x101, refcnt=3D5, metric=3D0 genmask=3D[NULL] gwroute=3D0x00000000 llinfo=3D0x805f8ba0 la_rt=3D0x805f8c40 la_hold=3D0x80605e80, la_asked=3D0x0 ------------ rtentry=3D0x805f8ae0 flags=3D0x20405 refcnt=3D0 use=3D5 expire=3D1233 key=3D[16,2,0,0,10,240,3,136,0,0,0,0,0,0,0,0] mask=3D[NULL] gw=3D[54,18,0,1,6,0,6,0,0,20,42,44,68,86,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 ,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0] ifp=3D0x805612d4 (dtl) ifa=3D0x805f8f30 ifa_addr=3D[16,2,0,0,10,240,3,156,0,0,0,0,0,0,0,0] ifa_dsta=3D[16,2,0,0,10,240,3,255,0,0,0,0,0,0,0,0] ifa_mask=3D[7,0,0,0,255,255,255] flags=3D0x101, refcnt=3D5, metric=3D0 genmask=3D[NULL] gwroute=3D0x00000000 llinfo=3D0x805f8a60 la_rt=3D0x805f8ae0 la_hold=3D0x00000000, la_asked=3D0x0 I'm getting the address/GW from DHCP server. My routing table after configuring the IP address and GW is provided below.=20 Routing tables Destination Gateway Mask Flags Interface 0.0.0.0 10.240.3.1 0.0.0.0 UG eth0 10.240.3.0 10.240.3.0 255.255.255.0 U eth0=20=20=20=20=20 127.0.0.0 127.0.0.1 255.0.0.0 UG lo0=20=20=20=20=20= =20 127.0.0.1 127.0.0.1 UH lo0=20=20=20=20=20= =20 Interface statistics Eth0 IP: 10.240.3.156, Broadcast: 10.240.3.255, Netmask: 255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU: 1500, Metric: 0 Rx - Packets: 100, Bytes: 19483, Tx - Packets: 12, Bytes: 720 lo0 IP: 127.0.0.1, Broadcast: 127.0.0.1, Netmask: 255.0.0.0 UP LOOPBACK RUNNING MULTICAST MTU: 16384, Metric: 0 Rx - Packets: 0, Bytes: 0, Tx - Packets: 0, Bytes: regards, Alok --=20 Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss -- Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss