Date: Thu, 23 Oct 2014 09:49:06 -0400 From: Jon Radel <jon@radel.com> To: freebsd-questions@freebsd.org Subject: Re: IPv6 aliases on FreeBSD 10 Message-ID: <54490752.7080504@radel.com> In-Reply-To: <CANNwXrZ75XtVv84adpum-DU_kf=KjuJfnFpuhZucXJhqBT3K%2Bw@mail.gmail.com> References: <CANNwXrYNw3bdnXDLdEVDhfWBxn2wu1Joyd3WpobweHDjUzFfgQ@mail.gmail.com> <5447AD3F.8060304@bytecamp.net> <CANNwXra7nhsH4m52-SX2PqBwHLP1NoqtZmGx-MF4B8VE8HJFTQ@mail.gmail.com> <CANNwXrZ75XtVv84adpum-DU_kf=KjuJfnFpuhZucXJhqBT3K%2Bw@mail.gmail.com>
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[-- Attachment #1 --] On 10/23/14, 1:19 AM, pepe wrote: > prefix 128 didn't work either. only first real address is working. none of > the aliases work with 48, 64 or 128... > our network is 2001:14b8:1801::/48 so that prefixlen 48 is right for ::1 > address isn't it? and well, it works so > I think it is right... > It would be rather unusual to have a /48 there. There are many things in IPv6 that assume you're using a /64 network on each LAN segment / collision domain / however-you-want-to-think-of-it. So while, in some senses, using a /48 there isn't *wrong*, after all, one might need to have 1.208 x 10^24 addresses on a single LAN segment [but so much else would break], in your case it's probably wrong. Things will probably go more smoothly in general if you use IPv6-think: You were assigned 2^16 (65,536) networks (each a /64). You were *not* assigned 2^80 addresses. (Obviously you were actually assigned 2^80 addresses, but that's really not a useful way to think of IPv6 addresses when planning your network.) Assign a /64 to the network this machine is connected to. Obviously other equipment has to play along and have a matching prefix length. You might also want to show us what is in your rc.conf, not just what ifconfig reports. Here's an example from an 8.3 server: ipv6_ifconfig_fxp0="2001:470:880a:5237::10:1 prefixlen 64" ipv6_ifconfig_fxp0_alias0="2001:470:880a:5237::12:1 prefixlen 128" ipv6_ifconfig_fxp0_alias1="2001:4830:1707:5237::10:1 prefixlen 64" ipv6_ifconfig_fxp0_alias2="2001:4830:1707:5237::12:1 prefixlen 128" ipv6_defaultrouter="2001:470:880a:5237::1" That works fine. --Jon Radel jon@radel.com [-- Attachment #2 --] 0 *H 01 0 + 0 *H 00mOj3""2zq0 *H 01 0 UUS1 0 UUT10USalt Lake City1 0 U The USERTRUST Network1!0 U http://www.usertrust.com1604U-UTN-USERFirst-Client Authentication and Email0 110428000000Z 200530104838Z01 0 UGB10UGreater Manchester10USalford10U COMODO CA Limited1907U0COMODO Client Authentication and Secure Email CA0"0 *H 0 [KW^/@ȣSX_fe2N2}UxLUB'qi2@'Vbqi c^`ʢAj HmeC*.+c8w߱ڂ2jgo \5Tq 7 PSl Y1 LR@[HhJ$ :q_㬿;%qh=XF<hmz!W42~JRrd&N`ohQcB}"cөΞD\[5 K0G0 U #0g}ĝ&p KPH|=n}0 U zN t[xcd'/[y{0U 0U 0 0U 00U 0XU Q0O0MKIGhttp://crl.usertrust.com/UTN-USERFirst-ClientAuthenticationandEmail.crl0t+h0f0=+01http://crt.usertrust.com/UTNAddTrustClient_CA.crt0%+0http://ocsp.usertrust.com0 *H ־xWUm3DRB JAIZҭsn>&|L0(B<%> u=9fѡMo(l tZڱuz/y VtCr`9 G:eH<=%`I?C 3_н`j;:< I3B)93i.EMiڀ =]|Gm]W0KID~y83:]&XaU!ՙC@B0Ұun00ʠQu5:FqxP0 *H 01 0 UGB10UGreater Manchester10USalford10U COMODO CA Limited1907U0COMODO Client Authentication and Secure Email CA0 120327000000Z 150327235959Z01 0 UUS10 U221501 0 UVA10U Springfield10U 6917 Ridgeway Dr.10U Jon T. Radel1200U )Issued through Jon T. Radel E-PKI Manager1 0 U Corporate Secure Email10U Jon Radel1 0 *H jon@radel.com0"0 *H 0 ˮ~! GNz^ts3B&z3"'^,WrF 6IUleMc t17ޔbWJvW:$ AlÕ d(H U ጋq?Ӫ Oa0 dZ[LpS՛[ 4u6xҚ[// Vvߢns( ` V8-r9̼Ta6XY{7 'MI#Bʬ D'I/K 00 U #0zN t[xcd'/[y{0 U | 1̴Ww0U 0 U 0 0 U %0++0FU ?0=0; +10+0)+ https://secure.comodo.net/CPS0WU P0N0LJHFhttp://crl.comodoca.com/COMODOClientAuthenticationandSecureEmailCA.crl0+|0z0R+0Fhttp://crt.comodoca.com/COMODOClientAuthenticationandSecureEmailCA.crt0$+0http://ocsp.comodoca.com0U 0 jon@radel.com0 *H $ X͌lnkGIms\~zt1cKE"͋;xܘG"fjo4 ºw*e`^VU >ߤBµYZU@zH(۷F k3TH_Ojb۟ߩhA3u/;MКwtPrAyʣ+,Xɕ8tA "wjOyܬI$<vS8a`A\ XyQ10001 0 UGB10UGreater Manchester10USalford10U COMODO CA Limited1907U0COMODO Client Authentication and Secure Email CAQu5:FqxP0 + E0 *H 1 *H 0 *H 1 141023134906Z0# *H 1]?\ .TK珰Q0l *H 1_0]0 `He*0 `He0 *H 0*H 0 *H @0+0 *H (0 +71001 0 UGB10UGreater Manchester10USalford10U COMODO CA Limited1907U0COMODO Client Authentication and Secure Email CAQu5:FqxP0 *H 101 0 UGB10UGreater Manchester10USalford10U COMODO CA Limited1907U0COMODO Client Authentication and Secure Email CAQu5:FqxP0 *H ~Q{ X tulB&J%!óYn 'kB1yj 3^/Mu |&t `ҙ}qԛwИC ̹.G!YoÊ8b v {r5^l\3b|T!n p<ȉ XPۛЩ!LD}$t*}#`ϸtZd{xsH15!JƦ GK<]Iq<V.uVn*help
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