proxy arp on 6.1

Peter Jeremy peterjeremy at optushome.com.au
Thu Oct 25 12:07:41 PDT 2007


On Wed, Oct 24, 2007 at 02:17:37PM -0400, Stephen Clark wrote:
>I must be doing something wrong. I can't seem to get proxy arp to work. Is 
>there some magic.

I've been using proxy ARP on FreeBSD between 4.x and 6.2 without problems
(though I think I skipped 6.1).

>I have the following setup isp router 205.x.x.1 <-> 205.x.x.100/25 rl1 
>freebsd vr0 205.x.x.129/25
><-> 205.x.x.193/25
>arp -an
>(205.x.x.1) at 00:13:7f:5a:b5:50 on rl1 [ethernet]
>(205.x.x.193) at 00:30:18:a3:44:2d on vr0 permanent published (proxy only) 
>[ethernet]
>
>tcpdump
>13:09:51.386793 arp who-has 205.x.x.193 tell 205.x.x.1

Which interface is being dumped and what does 'ifconfig vr0' show?
If you are dumping the rl0 interface then my suspicion is that the
subnet on 205.x.x.1 is wrong:  205.x.x.193 is not the same subnet
as 205.x.x.1/25 so 205.x.x.1 should not be doing ARP requests for
it, it should be accessing it via a gateway (router).

-- 
As a computing professional, I believe it would be unethical for me to
advise, recommend, or support the use (save possibly for personal
amusement) of any product that is or depends on any Microsoft product.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 187 bytes
Desc: not available
Url : http://lists.freebsd.org/pipermail/freebsd-net/attachments/20071025/44525f03/attachment.pgp


More information about the freebsd-net mailing list