From owner-freebsd-net@freebsd.org Thu Sep 3 13:02:29 2020 Return-Path: Delivered-To: freebsd-net@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id E045A3E5B9F for ; Thu, 3 Sep 2020 13:02:29 +0000 (UTC) (envelope-from cristian.cardoso11@gmail.com) Received: from mail-ej1-x62d.google.com (mail-ej1-x62d.google.com [IPv6:2a00:1450:4864:20::62d]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "GTS CA 1O1" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4Bj1Dj1BgTz4PXK for ; Thu, 3 Sep 2020 13:02:28 +0000 (UTC) (envelope-from cristian.cardoso11@gmail.com) Received: by mail-ej1-x62d.google.com with SMTP id lo4so3734403ejb.8 for ; Thu, 03 Sep 2020 06:02:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :content-transfer-encoding; bh=TbaiXaUsR8Gq2iBM634F21vSHtflWymLyzQhcJSnVFw=; b=J/XNkiur/NTbHO1tzyV5mirO/xdQimu+cTzWjBqyi7MSOWLozT9mLwFXuSTPznXVVU eG7rGgPegR20zrbxk04hra2kR18d2pUaRq/rYq2PEMvkOvmqxKLxKcDNUKD+CnBNQH0H 6o1mVooxi808z9njcrg/BzBdM3SSp/L8Q5RsEBU+TshiZR8N1EqPh9M8fvv6hc2C0l0P e4MID28u4snEhLUujosXT22vCDlY6XwpNKJArh34Ae8cnbN8q+tN93nn66AFbQkjR4ZK o73oyHe0aJKAW3rT7diYktxXUEtVepF4kq7QHpS61Bnqx7WSlt5co8qq+7A+p7heYcxK IZrg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:content-transfer-encoding; bh=TbaiXaUsR8Gq2iBM634F21vSHtflWymLyzQhcJSnVFw=; b=rRbtNflR9QXJCPQt+Lwk10VERzvLote2tb6/jeC+k4WKXn54GrRXVYjC4ybOBS8HwH sE66AOilwwICR8fARRBNcGN6F5FzHEcXcQzfBuKe1mgJZxZxdaakiiE+lsuduXsX1Qd2 crLkJZrtXmuNZ7hlNcN+B7osB9Be723+BayhOPndZaFzJIUVxu0rCMgA58lP/DxqLdIC MYM8TTxx6PUmJpa2vTDr7ptuVxspK2YgP1DpWVg+0LFdwnRdNvBZ+Pi0j9KklxyHQXJY X623xCHjWT6kR0ZkJSQR4ZcCdGei7EgXIJRrQPnF2kM62RNKAzibhcnMoR75ZluQJLYT N6jw== X-Gm-Message-State: AOAM531EEvypqoEKKv8JqjRLaaRkVC/l94hX463BzRv1BBAE7pei+oNE cHIv/rIULfpXxyUsoN/KdB2ZvZMoxe4QsFgRteu+VLikGkYR X-Google-Smtp-Source: ABdhPJzxGeZwxDo+cYG4ttAnpz1dS6oOjwiwL3lSsiamXcWfGxq4AbSyTqnvTZGeGjcITCjPjubUWpN6NRFRlZRv2rc= X-Received: by 2002:a17:906:c001:: with SMTP id e1mr2107737ejz.390.1599138145895; Thu, 03 Sep 2020 06:02:25 -0700 (PDT) MIME-Version: 1.0 References: <592b041e-0243-8148-3ac6-ca8da4ca5e84@selasky.org> In-Reply-To: <592b041e-0243-8148-3ac6-ca8da4ca5e84@selasky.org> From: Cristian Cardoso Date: Thu, 3 Sep 2020 10:02:15 -0300 Message-ID: Subject: Re: Ipv6 neighbor limit To: Hans Petter Selasky , freebsd-net@freebsd.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Rspamd-Queue-Id: 4Bj1Dj1BgTz4PXK X-Spamd-Bar: --- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=gmail.com header.s=20161025 header.b=J/XNkiur; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (mx1.freebsd.org: domain of cristiancardoso11@gmail.com designates 2a00:1450:4864:20::62d as permitted sender) smtp.mailfrom=cristiancardoso11@gmail.com X-Spamd-Result: default: False [-3.66 / 15.00]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-0.98)[-0.978]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20161025]; RCVD_TLS_ALL(0.00)[]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; R_SPF_ALLOW(-0.20)[+ip6:2a00:1450:4000::/36:c]; FREEMAIL_FROM(0.00)[gmail.com]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-net@freebsd.org]; NEURAL_HAM_LONG(-0.97)[-0.968]; DWL_DNSWL_NONE(0.00)[gmail.com:dkim]; TO_MATCH_ENVRCPT_SOME(0.00)[]; DKIM_TRACE(0.00)[gmail.com:+]; RCPT_COUNT_TWO(0.00)[2]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; RCVD_IN_DNSWL_NONE(0.00)[2a00:1450:4864:20::62d:from]; NEURAL_HAM_SHORT(-0.71)[-0.711]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; FREEMAIL_ENVFROM(0.00)[gmail.com]; ASN(0.00)[asn:15169, ipnet:2a00:1450::/32, country:US]; TAGGED_FROM(0.00)[]; MAILMAN_DEST(0.00)[freebsd-net]; RCVD_COUNT_TWO(0.00)[2] X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 03 Sep 2020 13:02:29 -0000 Hi I don't know if that is it. I am trying to find out if there are any limits for ipv6 neighbors in the kernel, as soon I will go over 4000 servers below my IPv6 router. In Juniper (which is a FreeBSD) I can set ndp6-max-cache, for example, to support more ipv6 neighbors. Em qui., 3 de set. de 2020 =C3=A0s 09:48, Hans Petter Selasky escreveu: > > On 2020-09-03 14:34, Cristian Cardoso wrote: > > Hi > > Would anyone know if there is any limit in the FreeBSD kernel for IPv6 > > neighbors? I checked the ndp documentation and found nothing, looking > > at the return of the sysctl command I also did not find anything > > explicit. > > > > Hi, > > There is something called: > > sys/netinet/in.h:#define IP_MAX_MEMBERSHIPS 4095 > sys/netinet6/in6.h:#define IPV6_MAX_MEMBERSHIPS 4095 > > Is this what you are looking for? > > --HPS