From: Stephen Clark <sclark46@earthlink.net>
To: Emil S Tantilov <emils.tantilov@gmail.com>
Cc: Linux Kernel Network Developers <netdev@vger.kernel.org>
Subject: Re: Linux vs FreeBSD Which is correct.
Date: Wed, 17 Aug 2011 13:20:34 -0400 [thread overview]
Message-ID: <4E4BF862.3050205@earthlink.net> (raw)
In-Reply-To: <CANh3MnZnyuvdiMyQTKKN=v-+y98FGbu+zA+=D4VnFL41AgRHpw@mail.gmail.com>
On 08/17/2011 01:10 PM, Emil S Tantilov wrote:
> On Wed, Aug 17, 2011 at 10:03 AM, Stephen Clark<sclark46@earthlink.net> wrote:
>
>> Hello List,
>>
>> Firstly thank you for your patience. I am replacing a bunch of FreeBSD
>> vpn/fw/routers
>> with a Linux based system.
>>
>> I have run into a situation where if I ping our HQ the response comes back
>> on a different
>> interface than what the request went out on. FreeBSD is happy and says it
>> got the response,
>> Linux is not and gives no indication it got a response.
>>
> Try enabling ARP filtering:
> echo 1> /proc/sys/net/ipv4/conf/all/arp_filter
Just tried it - made no difference.
Thanks.
[root@L101111 ~]# echo 1 > /proc/sys/net/ipv4/conf/all/arp_filterL101111:~
$ ping -I 172.21.76.150 172.21.232.55
PING 172.21.232.55 (172.21.232.55) from 172.21.76.150 : 56(84) bytes of
data.
^C
--- 172.21.232.55 ping statistics ---
9 packets transmitted, 0 received, 100% packet loss, time 8238ms
L101111:~
$ sudo tcpdump -nli eth0 icmp
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes
13:19:13.808262 IP 172.21.232.55 > 172.21.76.150: ICMP echo reply, id
19545, seq 6, length 64
13:19:14.807541 IP 172.21.232.55 > 172.21.76.150: ICMP echo reply, id
19545, seq 7, length 64
^C
next prev parent reply other threads:[~2011-08-17 17:51 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-17 17:03 Linux vs FreeBSD Which is correct Stephen Clark
2011-08-17 17:10 ` Emil S Tantilov
2011-08-17 17:20 ` Stephen Clark [this message]
2011-08-17 17:17 ` Rémi Denis-Courmont
2011-08-17 19:44 ` Stephen Clark
2011-08-17 20:15 ` Pascal Hambourg
2011-08-18 12:42 ` Stephen Clark
2011-08-19 16:18 ` Chris Friesen
2011-08-19 19:10 ` Stephen Clark
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