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From: Cyrus <cyruspy@gmail.com>
To: pve-user@lists.proxmox.com
Subject: [PVE-User] Inter VRF traffic
Date: Mon, 10 Mar 2025 17:39:25 -0300	[thread overview]
Message-ID: <CAEaLa5E2VUvhecTwpiR5FGWU1xp3BKB-r31JsGQP+hVHvQwt5A@mail.gmail.com> (raw)

Hello!,

I'm trying to make traffic work between VRFs passing through a an
external firewall (opnsense+frr) but traffic seems to be resolved
locally by the node, even though source/destination are on different
VRFs (and ultimately doesn't work):

root@pve-01:~/bin# ip route get 192.168.111.10
192.168.111.10 via 192.168.203.145 dev vrfbr_L01VPN01 src
192.168.203.212 uid 0
   cache

root@pve-01:~/bin# ip route get 192.168.111.10
192.168.111.10 dev ol111001 src 192.168.111.1 uid 0
   cache

root@pve-01:~/bin# ip addr show dev ol111001
191: ol111001: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc
noqueue master vrf_L01VPN01 state UP group default qlen 1000
   link/ether bc:24:11:e6:34:58 brd ff:ff:ff:ff:ff:ff
   inet 192.168.111.1/25 scope global ol111001
      valid_lft forever preferred_lft forever
   inet6 fe80::be24:11ff:fee6:3458/64 scope link
      valid_lft forever preferred_lft forever

root@pve-01:~/bin# ip addr show dev ol107001
63: ol107001: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue
master vrf_SDCVPN01 state UP group default qlen 1000
   link/ether bc:24:11:a9:f9:46 brd ff:ff:ff:ff:ff:ff
   inet 192.168.107.1/27 scope global ol107001
      valid_lft forever preferred_lft forever
   inet6 fe80::be24:11ff:fea9:f946/64 scope link
      valid_lft forever preferred_lft forever

"ip r" output: https://pastebin.com/Q9sF8uMv
"frr.conf.local" content: https://pastebin.com/KAqNqKB1
rendered "frr.conf": https://pastebin.com/gUpYnuc0
/etc/pve/sdn/*: https://pastebin.com/U7yjNe5N
"/etc/network/interfaces" for pve-01: https://pastebin.com/smEfYUJw

North/South traffic works anytime destination is an external network.

North/South traffic fails if destination is the host or a network in
another VRF and traffic should be forwarded via an external firewall.

Any hints?, is something missing?

Regards,

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             reply	other threads:[~2025-03-10 20:39 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-03-10 20:39 Cyrus [this message]
2025-03-11  7:50 ` Schunke, Alexander
2025-03-11 16:25 ` DERUMIER, Alexandre
2025-03-11 17:44   ` Cyrus
2025-03-11 18:54     ` Cyrus

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