Date: Sat, 23 Jun 2007 07:56:32 -0500 From: Eric Crist <mnslinky@gmail.com> To: Tilman Linneweh <arved@FreeBSD.org> Cc: FreeBSD List Mailing <freebsd-questions@FreeBSD.org> Subject: Re: IPv6 Setup... Message-ID: <BA4BDC87-E7DA-47BD-BA21-A58041E8C413@gmail.com> In-Reply-To: <5939210B-0CB7-4770-836D-31313F1A377B@FreeBSD.org> References: <13445EC8-61D0-4BD7-A70A-6DE7DFF84097@gmail.com> <5939210B-0CB7-4770-836D-31313F1A377B@FreeBSD.org>
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On Jun 23, 2007, at 7:17 AMJun 23, 2007, Tilman Linneweh wrote: > > On Jun 23, 2007, at 04:36 , Eric Crist wrote: >> I have 5 servers on my quaint little network, and my primary >> firewall is configured with an IPv6 address, we'll say >> 1000:2000:1::6 and is connected to my ISP through a gif tunnel >> (router doesn't support IPv6 yet, on my end) to 1000:2000:1::5. I >> can ping6 all day long across this tunnel, and I can even connect >> through this firewall to other sites using the IPv6 addresses. >> >> I've been given 2001:4900:1:0111::/64 for my use. I've >> configured /etc/rc.conf on my first two machines with >> ipv6_enable="YES" and given them 2001:4980:1:0111::1 and >> 2001:4980:1:0111::2. Each machine can ping6 itself, but they >> cannot ping6 eachother. I know the copper is good, and my ipv6 is >> running along side my ipv4 addresses and such. In addition, there >> are no firewalls in between. >> >> Is there something I'm missing? > > Maybe you used a /128 netmask, or a wrong routing table? Try > sniffing with tcpdump/wireshark to see what is going on. > >> >> Also, what the heck is rtadvd_enable="YES" actually doing for me? >> I understand it's broadcasting some routing stuff so my other >> hosts can auto-configure their IPv6 addresses, but anything else? >> > > There is a section in the handbook about ipv6: > http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/network- > ipv6.html > Something I've just learned is that autoconfiguration of IPv6 *is* working to my ipv6 gateway. I can ping between machines using their autoconfiguration addresses, however, I cannot ping statically assigned addresses. Also, it appears that all of my servers, those set to autoconf and those note, have 2001:4900:1:111::1 assigned to their loopback address. Is this normal? The route on a host looks like: Internet6: Destination Gateway Flags Netif Expire :: localhost.secure-c UGRS lo0 localhost.secure-c localhost.secure-c UHL lo0 ::ffff:0.0.0.0 localhost.secure-c UGRS lo0 2001:4900:1:111:: link#1 UC sk0 2001:4900:1:111::1 my:ma:ca:dd:re:ss UHL lo0 2001:4900:1:111:20 ma:ca:dd:re:ss:02 UHLW sk0 fe80:: localhost.secure-c UGRS lo0 fe80::%sk0 link#1 UC sk0 fe80::212:17ff:fe4 my:mc:ca:dd:re:ss UHL lo0 fe80::%lo0 fe80::1%lo0 U lo0 fe80::1%lo0 link#4 UHL lo0 ff01:1:: link#1 UC sk0 ff01:4:: localhost.secure-c UC lo0 ff02:: localhost.secure-c UGRS lo0 ff02::%sk0 link#1 UC sk0 ff02::%lo0 localhost.secure-c UC lo0
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