netdev - Re: [PATCH net-next 0/3 v4] changes to make ipv4 routing table aware of next-hop link status

lists.openwall.net		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 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Wed, 17 Jun 2015 18:05:32 +0200
From:	Nicolas Dichtel <nicolas.dichtel@...nd.com>
To:	Andy Gospodarek <gospo@...ulusnetworks.com>,
	netdev@...r.kernel.org, davem@...emloft.net,
	ddutt@...ulusnetworks.com, sfeldma@...il.com,
	alexander.duyck@...il.com, hannes@...essinduktion.org,
	stephen@...workplumber.org
Subject: Re: [PATCH net-next 0/3 v4] changes to make ipv4 routing table aware
 of next-hop link status

Le 15/06/2015 18:33, Andy Gospodarek a écrit :
> This series adds the ability to have the Linux kernel track whether or
> not a particular route should be used based on the link-status of the
> interface associated with the next-hop.
>
> Before this patch any link-failure on an interface that was serving as a
> gateway for some systems could result in those systems being isolated
> from the rest of the network as the stack would continue to attempt to
> send frames out of an interface that is actually linked-down.  When the
> kernel is responsible for all forwarding, it should also be responsible
> for taking action when the traffic can no longer be forwarded -- there
> is no real need to outsource link-monitoring to userspace anymore.
>
> This feature is only enabled with the new per-interface or ipv4 global
> sysctls called 'ignore_routes_with_linkdown'.
>
> net.ipv4.conf.all.ignore_routes_with_linkdown = 0
> net.ipv4.conf.default.ignore_routes_with_linkdown = 0
> net.ipv4.conf.lo.ignore_routes_with_linkdown = 0
> ...
Sorry for my late reply, but is it possible to advertise this sysctl via the
netconf infra (grep NETCONFA_)?


Regards,
Nicolas
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html