Date: Mon, 20 Jan 2003 16:34:46 -0800 From: "Crist J. Clark" <crist.clark@attbi.com> To: Kenneth Stailey <kstailey@yahoo.com> Cc: freebsd-net@freebsd.org Subject: Re: How to use proxy ARP for tun device? Message-ID: <20030121003446.GG34751@blossom.cjclark.org> In-Reply-To: <20030120235956.66063.qmail@web10005.mail.yahoo.com> References: <20030120235956.66063.qmail@web10005.mail.yahoo.com>
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On Mon, Jan 20, 2003 at 03:59:56PM -0800, Kenneth Stailey wrote:
> Seems that if I set up a tun device I can't proxy arp for the "remote" end.
>
> bsdlab# sysctl net.link.ether.inet.proxyall=1
> net.link.ether.inet.proxyall: 0 -> 1
>
> (set to 1 or 0 the same failure occurs)
>
> bsdlab# ifconfig tun0
> tun0: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 1500
> inet6 fe80::2a0:c9ff:fe31:f067%tun0 prefixlen 64 scopeid 0x5
> inet 64.93.1.35 --> 10.134.198.236 netmask 0xff000000
> Opened by PID 89567
>
> bsdlab# /usr/sbin/arp -s 10.134.198.236 0:a0:c9:31:f0:67 pub
> cannot intuit interface index and type for 10.134.198.236
>
> What should I do to make arp work?
$ man ppp
...
proxyall
Default: Disabled. Enabling this will tell ppp to add proxy arp
entries for every IP address in all class C or smaller subnets
routed via the tun interface.
Proxy arp entries are only made for sticky routes that are added
using the ``add'' command. No proxy arp entries are made for the
interface address itself (as created by the ``set ifaddr'' com-
mand).
--
Crist J. Clark | cjclark@alum.mit.edu
| cjclark@jhu.edu
http://people.freebsd.org/~cjc/ | cjc@freebsd.org
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