Date: Wed, 11 Mar 2026 06:26:36 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 292319] [network: fibs] traffic comes from the wrong fib in some cases. Message-ID: <bug-292319-227-9Ybhbz0VkL@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-292319-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=292319 --- Comment #4 from William Brown <william@firstyear.id.au> --- Please answer the questions below to help me reproduce: 1. sysctl output of your: 1.1. net.inet.ip.forwarding net.inet.ip.forwarding: 1 1.2. net.inet.icmp.drop_redirect net.inet.icmp.drop_redirect: 0 (during the issue) 2. what is your openvpn configuration? 2.1. is it client or server? client 2.2. any `dev` interface specified? # openvpn_instance.conf dev-type tun dev tun5 # /etc/rc.conf cloned_interfaces="... tun5" ifconfig_tun5="fib 1" 2.3. what is your `topology` configuration? subnet? p2p? subnet 2.4. on ifconfig -v tun5, what is your driver name? openvpn? tun? tun5: flags=1008051<UP,POINTOPOINT,RUNNING,MULTICAST,LOWER_UP> metric 0 mtu 1500 options=4080000<LINKSTATE,MEXTPG> inet 10.149.210.138 --> 10.149.210.137 netmask 0xffffffff inet6 fe80::5a9c:fcff:fe0a:5755%tun5 prefixlen 64 scopeid 0xb inet6 2a07:de40:b2bf:1b::10a1 prefixlen 64 groups: tun fib: 1 nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL> Opened by PID 81039 drivername: tun5 3. netstat -rn4 output of both fibs after before and after receiving redirect: 3.1. netstat -rn4F1 3.2. netstat -rn4F5 BEFORE: roxie% sudo -s roxie# netstat -rn4F1 Routing tables (fib: 1) Internet: Destination Gateway Flags Netif Expire default 172.24.17.1 UGS vtnet1 10.0.0.0/8 link#11 US tun5 10.149.242.41 link#11 UH tun5 10.149.242.42 link#7 UHS lo0 127.0.0.1 link#7 UHS lo0 137.65.0.0/16 link#11 US tun5 147.2.0.0/16 link#11 US tun5 149.44.0.0/16 link#11 US tun5 151.155.128.0/17 link#11 US tun5 164.99.0.0/16 link#11 US tun5 172.24.17.0/24 link#2 U vtnet1 172.24.17.24 link#7 UHS lo0 roxie# netstat -rn4F5 Routing tables (fib: 5) Internet: Destination Gateway Flags Netif Expire default 172.24.17.1 UGS vtnet5 127.0.0.1 link#7 UHS lo0 172.24.17.0/24 link#6 U vtnet5 172.24.17.26 link#7 UHS lo0 AFTER: roxie# netstat -rn4F1 Routing tables (fib: 1) Internet: Destination Gateway Flags Netif Expire default 172.24.17.1 UGS vtnet1 10.0.0.0/8 link#11 US tun5 10.149.242.41 link#11 UH tun5 10.149.242.42 link#7 UHS lo0 127.0.0.1 link#7 UHS lo0 137.65.0.0/16 link#11 US tun5 147.2.0.0/16 link#11 US tun5 149.44.0.0/16 link#11 US tun5 151.155.128.0/17 link#11 US tun5 164.99.0.0/16 link#11 US tun5 172.24.17.0/24 link#2 U vtnet1 172.24.17.24 link#7 UHS lo0 roxie# netstat -rn4F5 Routing tables (fib: 5) Internet: Destination Gateway Flags Netif Expire default 172.24.17.1 UGS vtnet5 127.0.0.1 link#7 UHS lo0 172.24.17.0/24 link#6 U vtnet5 172.24.17.26 link#7 UHS lo0 -- You are receiving this mail because: You are the assignee for the bug.home | help
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