From: Alexandre Derumier Date: Mon, 9 Sep 2019 05:46:09 +0000 (+0200) Subject: vxlan: add rp_filter sysctl for multiple gateway nodes X-Git-Url: https://git.proxmox.com/?p=pve-docs.git;a=commitdiff_plain;h=c21bc66fbc4d060763bd9596bcec996594942152;ds=sidebyside vxlan: add rp_filter sysctl for multiple gateway nodes Signed-off-by: Alexandre Derumier --- diff --git a/vxlan-and-evpn.adoc b/vxlan-and-evpn.adoc index 3d495a3..0a05cfb 100644 --- a/vxlan-and-evpn.adoc +++ b/vxlan-and-evpn.adoc @@ -1505,6 +1505,16 @@ The external router have ecmp routes to all proxmox nodes.(balancing). If the router send the packet to a wrong node (vm is not on this node), this node will route through vxlan the packet to final destination. +If you have multiple gateway nodes, disable rp_filter as packet could incoming in a 1 node, and outgoing +to another node. + +sysctl.conf tuning +----- +net.ipv4.conf.default.rp_filter=0 +net.ipv4.conf.all.rp_filter=0 +----- + + *node1 ----