Date: Wed, 01 Jun 2022 10:25:19 +0000 From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 256681] [route] Incorrect loopback route for aliases IP addresses Message-ID: <bug-256681-7501-1p8LK0BNAR@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-256681-7501@https.bugs.freebsd.org/bugzilla/> References: <bug-256681-7501@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D256681 Philipp Wuensche <cryx-ports@h3q.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |cryx-ports@h3q.com --- Comment #7 from Philipp Wuensche <cryx-ports@h3q.com> --- This is hitting me in my jail setups also. Up until 12.3 I had jails running on lo1 interfaces in the e.g. 127.1.1.0/24 range running services for the jails that are running on ipaddr. of the hos= ts external interfaces. Like a jail running postgresql on 127.1.1.1 and several webservice jails running on external ipaddr. using this postgresql jail as their database. This had the nice effect of jails on the loopback ipaddr. not being able to reach the internet and vice versa, even without a firewall in place, and me= not guessing rfc1918 ipaddr. that might not being used somewhere else in the network. Multiple jails on the external interface resulted in /32 aliases on the external interface, which wasn't a problem until FreeBSD 13. >From now on, the jails that had a /32 alias ipaddr. where unable to reach t= he services running in loopback jails, due to the missing lo0 route. For me this is a regression or at least it is somewhat unpleasant that this change in behaviour is just mentioned as "Duplicate routes installation iss= ue for /32 or /128 interface aliases has been fixed" in the release notes of 1= 3.0.=20 I know there are solutions like VNET for jails etc.pp. but I just wanted to mention this here for all the users that will run into this issue. --=20 You are receiving this mail because: You are on the CC list for the bug.=
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