From: Ido Schimmel <idosch@idosch.org>
To: Swarm NameRedacted <thesw4rm@pm.me>
Cc: Andrew Lunn <andrew@lunn.ch>, netdev@vger.kernel.org
Subject: Re: Packet not rerouting via different bridge interface after modifying destination IP in TC ingress hook
Date: Thu, 6 Aug 2020 09:33:36 +0300 [thread overview]
Message-ID: <20200806063336.GA2621096@shredder> (raw)
In-Reply-To: <20200805201204.vsnav57fmgqkkpxf@chillin-at-nou.localdomain>
On Wed, Aug 05, 2020 at 08:12:08PM +0000, Swarm NameRedacted wrote:
> All fair points, I'll address them one by one.
> 1) The subnet size on everything is /16; everything is on the same
> subnet (hence the bridge) except for the client which sends the initial
> SYN packet. Modifying the destination MAC address was definitely
> something I overlooked and that did get the packet running through the
> correct interface. I got a bit thrown off that the bridge has it's own
> MAC address that is identical to the LAN interface and couldn't
> visualize it as an L2 switch. However, the packet is still being
> dropped; I suspect it might be a checksum error but the only incorrect
> checksum is TCP. Might have accidentally disabled checksum offloading. I'm not
> sure
You might need to enable hairpin on eth0:
# ip link set dev eth0 type bridge_slave hairpin on
next prev parent reply other threads:[~2020-08-06 11:04 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-05 8:19 Packet not rerouting via different bridge interface after modifying destination IP in TC ingress hook Swarm NameRedacted
2020-08-05 13:39 ` Andrew Lunn
2020-08-05 20:12 ` Swarm NameRedacted
2020-08-06 6:33 ` Ido Schimmel [this message]
2020-08-06 7:00 ` Swarm NameRedacted
2020-08-06 7:49 ` Ido Schimmel
2020-08-06 8:33 ` Swarm NameRedacted
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