From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from firstgate.proxmox.com (firstgate.proxmox.com [212.224.123.68]) by lore.proxmox.com (Postfix) with ESMTPS id 050061FF143 for ; Mon, 19 Jan 2026 12:09:36 +0100 (CET) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id 031711B8D1; Mon, 19 Jan 2026 12:09:42 +0100 (CET) Message-ID: <1a741933-de82-4928-a68d-69f4b823e7e8@proxmox.com> Date: Mon, 19 Jan 2026 12:09:38 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird To: pve-devel@lists.proxmox.com References: <20260119110534.18200-1-h.laimer@proxmox.com> Content-Language: en-US From: Stefan Hanreich In-Reply-To: <20260119110534.18200-1-h.laimer@proxmox.com> X-SPAM-LEVEL: Spam detection results: 0 AWL 0.725 Adjusted score from AWL reputation of From: address BAYES_00 -1.9 Bayes spam probability is 0 to 1% DMARC_MISSING 0.1 Missing DMARC policy KAM_DMARC_STATUS 0.01 Test Rule for DKIM or SPF Failure with Strict Alignment SPF_HELO_NONE 0.001 SPF: HELO does not publish an SPF Record SPF_PASS -0.001 SPF: sender matches SPF record Subject: Re: [pve-devel] [PATCH pve-network v2] sdn: evpn: fix IPv6 exitnode local routing X-BeenThere: pve-devel@lists.proxmox.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: Proxmox VE development discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Proxmox VE development discussion Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: pve-devel-bounces@lists.proxmox.com Sender: "pve-devel" On 1/19/26 12:05 PM, Hannes Laimer wrote: > 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 > --- > 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"; Wouldn't it make sense to use the link-local address instead? For IPv4 it would make sense as well imo to use an APIPA address instead, but technically that's a breaking change. I guess we could even route all IPv4 traffic via the IPv6 link-local address. > + } 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; _______________________________________________ pve-devel mailing list pve-devel@lists.proxmox.com https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-devel