From: Hannes Laimer <h.laimer@proxmox.com>
To: pve-devel@lists.proxmox.com
Subject: [pve-devel] [PATCH pve-network v2] sdn: evpn: fix IPv6 exitnode local routing
Date: Mon, 19 Jan 2026 12:05:34 +0100 [thread overview]
Message-ID: <20260119110534.18200-1-h.laimer@proxmox.com> (raw)
IPv6 subnets on exitnodes had no working local-routing path. Add a v6
address on the xvrf veth pair and install IPv6 routes via that next-hop.
Signed-off-by: Hannes Laimer <h.laimer@proxmox.com>
---
v2:
- change `address6` to `address`, ifreload2 does not pick up address6.
Probably had the address still attached from manualy testing so I
didn't notice when I tested this for v1
src/PVE/Network/SDN/Controllers/EvpnPlugin.pm | 7 ++++++-
src/PVE/Network/SDN/Zones/EvpnPlugin.pm | 2 ++
2 files changed, 8 insertions(+), 1 deletion(-)
diff --git a/src/PVE/Network/SDN/Controllers/EvpnPlugin.pm b/src/PVE/Network/SDN/Controllers/EvpnPlugin.pm
index e53000a..74fc35d 100644
--- a/src/PVE/Network/SDN/Controllers/EvpnPlugin.pm
+++ b/src/PVE/Network/SDN/Controllers/EvpnPlugin.pm
@@ -462,7 +462,12 @@ sub generate_vnet_frr_config {
foreach my $subnetid (sort keys %{$subnets}) {
my $subnet = $subnets->{$subnetid};
my $cidr = $subnet->{cidr};
- push @controller_config, "ip route $cidr 10.255.255.2 xvrf_$zoneid";
+ my ($ip) = split(/\//, $cidr, 2);
+ if (Net::IP::ip_is_ipv6($ip)) {
+ push @controller_config, "ipv6 route $cidr fd00:ffff::2 xvrf_$zoneid";
+ } else {
+ push @controller_config, "ip route $cidr 10.255.255.2 xvrf_$zoneid";
+ }
}
push(@{ $config->{frr_ip_protocol} }, @controller_config);
}
diff --git a/src/PVE/Network/SDN/Zones/EvpnPlugin.pm b/src/PVE/Network/SDN/Zones/EvpnPlugin.pm
index 6d89499..18aecb9 100644
--- a/src/PVE/Network/SDN/Zones/EvpnPlugin.pm
+++ b/src/PVE/Network/SDN/Zones/EvpnPlugin.pm
@@ -327,6 +327,7 @@ sub generate_sdn_config {
@iface_config = ();
push @iface_config, "link-type veth";
push @iface_config, "address 10.255.255.1/30";
+ push @iface_config, "address fd00:ffff::1/126" if $ipv6;
push @iface_config, "veth-peer-name $iface_xvrfp";
push @iface_config, "mtu " . ($mtu + 50) if $mtu;
push(@{ $config->{$iface_xvrf} }, @iface_config) if !$config->{$iface_xvrf};
@@ -334,6 +335,7 @@ sub generate_sdn_config {
@iface_config = ();
push @iface_config, "link-type veth";
push @iface_config, "address 10.255.255.2/30";
+ push @iface_config, "address fd00:ffff::2/126" if $ipv6;
push @iface_config, "veth-peer-name $iface_xvrf";
push @iface_config, "vrf $vrf_iface";
push @iface_config, "mtu " . ($mtu + 50) if $mtu;
--
2.47.3
_______________________________________________
pve-devel mailing list
pve-devel@lists.proxmox.com
https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-devel
next reply other threads:[~2026-01-19 11:06 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-19 11:05 Hannes Laimer [this message]
2026-01-19 11:09 ` Stefan Hanreich
2026-01-19 11:13 ` Hannes Laimer
2026-01-19 14:27 ` [pve-devel] superseded: " Hannes Laimer
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20260119110534.18200-1-h.laimer@proxmox.com \
--to=h.laimer@proxmox.com \
--cc=pve-devel@lists.proxmox.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.