From owner-freebsd-questions Wed Oct 27 4:17: 6 1999 Delivered-To: freebsd-questions@freebsd.org Received: from mailhub2.stratus.com (mailhub.stratus.com [134.111.1.16]) by hub.freebsd.org (Postfix) with ESMTP id A07A514A06 for ; Wed, 27 Oct 1999 04:16:52 -0700 (PDT) (envelope-from Pradesh_Chanderpaul@stratus.com) Received: from exna1.stratus.com (exna1.stratus.com [134.111.200.65]) by mailhub2.stratus.com (8.9.3/8.9.3) with ESMTP id HAA28429 for ; Wed, 27 Oct 1999 07:15:04 -0400 (EDT) Received: by exna1.stratus.com with Internet Mail Service (5.5.2448.0) id ; Wed, 27 Oct 1999 07:19:11 -0400 Message-ID: <1D1A4EF7AD4DD211A80D00A0C9D7DB667E685B@exna1.stratus.com> From: "Chanderpaul, Pradesh" To: "'questions@freebsd.org'" Subject: IS: Network lost after replacing NIC - suspect routing Date: Wed, 27 Oct 1999 07:19:11 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2448.0) Content-Type: text/plain Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Hello all I seemed to have lost network connectivity after replacing my NIC. My situation is this :- - I installed FreeBSD 3-2.RELEASE with a working SMC Ultra ethernet NIC. No problems here - I replaced the NIC device with a 3COM 3C509 NIC. Same network addresses as old NIC. - The card is recognised at boot ep0 at 0x300-0x30f irq 10 on isa ep0: utp[*UTP*] address 00:60:08:7c:64:bd - The card has a link light. - I obtain similar results with and without link2 passed to ifconfig. - The card is configured for TCP/IP (I've changed the actual addresses) $ ifconfig ep0 ep0: flags=c843 mtu 1500 inet 111.222.333.44 netmask 0xffffff00 broadcast 111.222.333.255 ether 00:60:08:7c:64:bd - I can ping the IP address defined on the card ok, so I deduce the TCP stack is loaded. $ ping 111.222.333.44 --- 111.222.333.44 ping statistics --- 3 packets transmitted, 3 packets received, 0% packet loss - However, I cannot reach the defined gateway. $ ping 111.222.333.1 ping: sendto: Host is down ping: sendto: Host is down . . - The tail end of my rc.conf ifconfig_ep0="inet 111.222.333.44 netmask 255.255.255.0" defaultrouter="111.222.333.1" hostname="sa-bsd-srv1.MYDOMAIN.COM" router_enable="NO" - I've noticed what I regard as strange (I may be wrong) routing behaviour Take note of the following output. THIS IS THE RESULT OF THE ROUTING TABLE IMMEDIATELY AFTER REBOOT $ netstat -nr Destination Gateway Flags Refs Use Netif Expire default 111.222.333.1 UGSc 0 0 ep0 <== OK HERE ^^^^^^^^^^^^^ === > MY DEFINED GATEWAY 127.0.0.1 127.0.0.1 UH 0 0 lo0 111.222.333 link#2 UC 0 0 ep0 111.222.333.1 link#2 UHLW 1 0 ep0 *** ^^^ **** === > SHOULD THIS BE HERE ??? I NOW PING THE IP ADDRESS DEFINED ON THE NIC. $ ping 111.222.333.44 PING 111.222.333.44 (111.222.333.44): 56 data bytes --- 111.222.333.44 ping statistics --- 3 packets transmitted, 3 packets received, 0% packet loss ===> OK $ netstat -nr Destination Gateway Flags Refs Use Netif Expire default 111.222.333.1 UGSc 0 0 ep0 127.0.0.1 127.0.0.1 UH 0 0 lo0 111.222.333 link#2 UC 0 0 ep0 111.222.333.1 link#2 UHLW 1 0 ep0 111.222.333.44 0:60:8:7c:64:bd UHLW 0 6 lo0 ^^^^^^^^^^^^^^ === > CREATES NEW ROUTE AND USES THIS. TRY PINGING THE DEFINED GATEWAY NOW $ ping 111.222.333.1 PING 111.222.333.1 (111.222.333.1): 56 data bytes ping: sendto: Host is down ping: sendto: Host is down --- 111.222.333.1 ping statistics --- 2 packets transmitted, 0 packets received, 100% packet loss <== 2 PACKECTS NOT OK LOOKING AT THE ROUTING TABLE NOW $ netstat -nr Routing tables Destination Gateway Flags Refs Use Netif Expire default 111.222.333.1 UGSc 0 0 ep0 127.0.0.1 127.0.0.1 UH 0 0 lo0 111.222.63 link#2 UC 0 0 ep0 111.222.333.1 link#2 UHLW 1 2 ep0 PACKETS SENT THROUGH THIS ROUTE === > ^^^ 111.222.333.44 0:60:8:7c:64:bd UHLW 0 6 lo0 TRY ANOTHER HOST IN THE NETWORK PING 111.222.333.39 (111.222.333.39): 56 data bytes --- 111.222.333.39 ping statistics --- 5 packets transmitted, 0 packets received, 100% packet loss <== 5 PACKETS NOT OK $ netstat -nr Destination Gateway Flags Refs Use Netif Expire default 111.222.333.1 UGSc 0 0 ep0 127.0.0.1 127.0.0.1 UH 0 0 lo0 111.222.333 link#2 UC 0 0 ep0 111.222.333.1 link#2 UHLW 1 2 ep0 111.222.333.39 link#2 UHLW 0 5 ep0 ^^^ CREATED ANOTHER ROUTE INSTEAD OF USING DEFAULT 111.222.333.44 0:60:8:7c:64:bd UHLW 0 6 lo0 I'll appreciate any assistance. I'd also appreciate being copied on the results as I'm not allowed newsgroup subscriptions on this email address. Thanking you in advance. =============================================================== Pradesh Chanderpaul Phone: +27 12 663 3260/6 Stratus Computer Systems FAX : +27 12 663 3281 South Africa CAC Email: Pradesh_Chanderpaul@stratus.com =============================================================== To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message