Weird TCP connect issue in FreeBSD 6

[Benjie Chen]

Peter,

Thanks for the response.

When I had two IPs from two different subnets configured for the two
NICs, I had the same error. So while I did have a configuration issue,
the problem with replicated SYNs did occur even when the two NICs had
IP addresses on different networks.

Benjie





On Wed, Dec 3, 2008 at 2:36 PM, Peter Jeremy
<peterjeremy at optushome.com.au> wrote:
> On 2008-Dec-02 15:10:11 -0500, Benjie Chen <benjie at addgene.org> wrote:
>>I have a weird issue to report, and I am not sure if it's a bug or
>>some other configuration problem.
>
> I would suggest it is a configuration problem.
>
>>Server is a dual NICed FreeBSD 6.2 system. For example, one NIC is em0
>>= 192.168.0.1, and the other one is em1 = 192.168.0.2.
>
> This is not a supported configuration - you cannot have addresses within
> the same subnet on more than one interface.
>
>>I just switched to using IP aliasing on the same NIC, and so far I
>>have not been able to re-produce the same problem.
>
> This is the correct configuration.
>
> --
> Peter Jeremy
> Please excuse any delays as the result of my ISP's inability to implement
> an MTA that is either RFC2821-compliant or matches their claimed behaviour.
>