lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:	Tue, 18 Jul 2006 08:25:49 -0500
From:	John Haller <>
To:	Herbert Xu <>
Subject: Re: [RFC PATCH 32/33] Add the Xen virtual network device driver.

Herbert Xu wrote:
> jamal <> wrote:
>> I dont think the ifup/ifconfig provide operational status (i.e link
>> up/down) - or do they? If they can be made to invoke scripts in such
>> a case then we are set.
> In fact, that's a very good reason why this shouldn't be in netfront.
> Indeed, it shouldn't be in the guest at all.  The reason is that the
> guest has no idea whether the physical carrier is present.
> It's much better for the host to send the ARP packet on behalf of the
> guest since the host knows the carrier status and the guest's MAC
> address.
But sending ARPs is not the right thing if the guest is expecting
to use IPv6 networking, in which case unsolicited neighbor
advertisements are the right thing to do.  The driver just
doesn't seem to be the right place to do this, as it doesn't/
shouldn't need to know the difference between IPv4/IPv6.
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

Powered by blists - more mailing lists