Bug 40841
| Summary: | the PPP primer gives a very wrong ppp.conf example, I think | ||
|---|---|---|---|
| Product: | Documentation | Reporter: | Ross Lippert <ripper> |
| Component: | Books & Articles | Assignee: | freebsd-doc (Nobody) <doc> |
| Status: | Closed FIXED | ||
| Severity: | Affects Only Me | ||
| Priority: | Normal | ||
| Version: | Latest | ||
| Hardware: | Any | ||
| OS: | Any | ||
This is a followup on how to fix the documentation. The following script modified the book.sgml sources to produce more RFC conformant examples. I chose 10.0.0.x dummy addresses because they are more similar to the ppp.conf.sample file currently in use in 4.6-RELEASE. #!/bin/sh for dir in ` find /usr/doc -type d -name ppp-primer` ; do mv "$dir/book.sgml" "$dir/book.sgml.orig" sed -e 's/127\.1\.1/10.0.0/g;s/127\.2\.2/10.0.0/g' "$dir/book.sgml.orig" > "$dir/book.sgml" done I've checked, and it does not look like this clobbers anything it shouldn't and it hits what it should. I suggest someone with commit bits apply this patch and commit it. -r (( Add to audit trail. )) Message-Id: <1029598994.530.26.camel@markx.vladsempire.net> Date: 17 Aug 2002 15:42:59 +0000 From: Josh Paetzel <friar_josh@webwarrior.net> Subject: docs/40841 Wrong info in ppp-primer I took a look at this pr, Ths conclusions are correct, you cannot use 127.0.0.0/8 in your ppp.conf file. Unfortunately the submitted fix isn't a patch, and it isn't comprehensive enough. I'm currently reworking the page in question and will have a patch tonight. State Changed From-To: open->closed The PPP Primer has been removed from the doc build. |
It is my understanding, from some emails I say a few months ago that FreeBSD recently made 127.x.x.x addresses entirely local in order to comply with some RFC someone found as well as some firewall software users wanted to use. The issue was that traffic to 127.x.x.x addr's should not leave the machine ever. This makes the 127.x.x.x numbers very bad to use as bogus addr's in the PPP primer. I just tried out PPP with a conf in which set ifaddr 127.1.1.1/0 127.2.2.2/0 255.255.255.0 add 0 0 127.2.2.2 and got some very nasty messages about routes already existing and other weirdness when I tried using PPP. The dialup connection would occur, but I could not ping anything, even by IP addr. Fix: Use different IP addr's as the bogus ones. Since 10.x.x.x is bogus according to RFC 1918, I suggest set ifaddr 10.1.1.127/0 10.2.2.127/0 255.255.255.0 add 0 0 10.2.2.127 This fixed it for me. That is, the use of 127.x.x.x as a bogus addr in the PPP Primer should be changed to something bogus, but not that bogu -=- MIME -=- This is a MIME-encapsulated message --g6JG28Kx093456.1027094528/laverne.home ********************************************** ** THIS IS A WARNING MESSAGE ONLY ** ** YOU DO NOT NEED TO RESEND YOUR MESSAGE ** ********************************************** The original message was received at Fri, 19 Jul 2002 07:33:28 -0400 (EDT) from localhost [127.0.0.1] ----- Transcript of session follows ----- 451 freebsd.org: Name server timeout Warning: message still undelivered after 4 hours Will keep trying until message is 5 days old --g6JG28Kx093456.1027094528/laverne.home Content-Type: message/delivery-status Reporting-MTA: dns; laverne.home Arrival-Date: Fri, 19 Jul 2002 07:33:28 -0400 (EDT) Final-Recipient: RFC822; FreeBSD-gnats-submit@freebsd.org Action: delayed Status: 4.4.3 Last-Attempt-Date: Fri, 19 Jul 2002 12:02:08 -0400 (EDT) Will-Retry-Until: Wed, 24 Jul 2002 07:33:28 -0400 (EDT) --g6JG28Kx093456.1027094528/laverne.home Content-Type: message/rfc822 Return-Path: <ripper@laverne.home> Received: from laverne.home (localhost [127.0.0.1]) by laverne.home (8.12.3/8.12.3) with ESMTP id g6JBXSKv090450 for <FreeBSD-gnats-submit@freebsd.org>; Fri, 19 Jul 2002 07:33:28 -0400 (EDT) (envelope-from ripper@laverne.home) Received: (from ripper@localhost) by laverne.home (8.12.3/8.12.3/Submit) id g6JBXQAF090449; Fri, 19 Jul 2002 07:33:26 -0400 (EDT) Date: Fri, 19 Jul 2002 07:33:26 -0400 (EDT) Message-Id: <200207191133.g6JBXQAF090449@laverne.home> To: FreeBSD-gnats-submit@freebsd.org Subject: the PPP primer gives a very wrong ppp.conf example, I think From: "Ross A. Lippert" <ripper@laverne.home> Reply-To: "Ross A. Lippert" <ripper@laverne.home> Cc: X-send-pr-version: 3.113 X-GNATS-Notify: MIME-Version: 1.0 How-To-Repeat: Read the PPP primer, and see the example ppp.conf file in section 3.2.1. Use that example as the basis for your ppp.conf file, i.e. have the lines set ifaddr 127.1.1.1/0 127.2.2.2/0 255.255.255.0 add 0 0 127.2.2.2 appropriately. % ppp -ddial myisp % ping <your name server's addr here> and you will not get good pinging.