From nobody Thu Jun 13 15:02:50 2024 X-Original-To: freebsd-net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4W0QdN1ZWMz5NpST for ; Thu, 13 Jun 2024 15:03:04 +0000 (UTC) (envelope-from carpeddiem@gmail.com) Received: from mail-il1-f182.google.com (mail-il1-f182.google.com [209.85.166.182]) (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 "WR4" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4W0QdM6cZXz4K2M for ; Thu, 13 Jun 2024 15:03:03 +0000 (UTC) (envelope-from carpeddiem@gmail.com) Authentication-Results: mx1.freebsd.org; none Received: by mail-il1-f182.google.com with SMTP id e9e14a558f8ab-375d39a0714so5740555ab.1 for ; Thu, 13 Jun 2024 08:03:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1718290982; x=1718895782; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=COjtQYSOJxUwyHLEo2P9mRVe5L6C3CO3Zs/63eQ3jhY=; b=CSdqmgtZ9Qy6T/xOTHRmNhrRp+RLxlHye9DKOMqX2QAvVRLroSbPzsoO+NhjhCxEXG shEeor3rtjuZY7sPlbShc9FvSJZcYU69mrSxrUXCXUajgbS6WAjZFFX4Az5FZD0w1wyK XGDNutz8aeG9Z2IoEMu9J8W3Hc1rpl6J9DjPjuYmsTMVV/hyUNqWnMKBLdonbwMVTAiD PhlTZQd1dQet43eGt3i7TjzWD3XZAE77rYHk14tumAThJ/hL3W7PTf9FBIOgMBTc3agw I01rrotILTjvdlU+smEsI3dTC+1W5UHMJGBKSHW/mEWvVOzATcBvqNvTD1Av18Ha3tVH lQrg== X-Gm-Message-State: AOJu0Yy4sOlLKdmbYgrK5ew4rigZteWczvU2ZjEOVZPMaq2k2au4EU3f AFVl18HvRqGobzxxl9JKJO0zTvDnGE10QkQLt9yYUSc/R/yThrSQcHk43VSltoD2F2Jx45whxKg EdurWwa3+/fpAhUNR64AghNiadhyvIw== X-Google-Smtp-Source: AGHT+IEQ+D9lYrjkseDaqMGHddJCZXUyAbcAEJcUkA8g8IiCE2+wDm4EGu5c3qlpvWYdwxFLXGKNay4ZTG0pEW5/sIo= X-Received: by 2002:a05:6e02:1a86:b0:375:c394:4344 with SMTP id e9e14a558f8ab-375cd1e44famr54109025ab.21.1718290982508; Thu, 13 Jun 2024 08:03:02 -0700 (PDT) List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org MIME-Version: 1.0 References: <202406131339.45DDdDma044779@gndrsh.dnsmgr.net> In-Reply-To: <202406131339.45DDdDma044779@gndrsh.dnsmgr.net> From: Ed Maste Date: Thu, 13 Jun 2024 11:02:50 -0400 Message-ID: Subject: Re: Discarding inbound ICMP REDIRECT by default To: "Rodney W. Grimes" Cc: freebsd-net@freebsd.org Content-Type: text/plain; charset="UTF-8" X-Spamd-Bar: ---- X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:15169, ipnet:209.85.128.0/17, country:US] X-Rspamd-Queue-Id: 4W0QdM6cZXz4K2M On Thu, 13 Jun 2024 at 09:39, Rodney W. Grimes wrote: > > Discarding ICMP redirects on a internet host is non-conformant with > STD-3 via rfc-1122. Processing of ICMP rediects is a MUST for hosts. In that case our default of "auto" is non-conformant if you have a routing daemon.