-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Louis Lagendijk wrote: > On Wed, 2009-06-10 at 13:08 -0500, Vadtec wrote: >> -----BEGIN PGP SIGNED MESSAGE----- >> Hash: SHA1 >> >> A few months back, I tried to use the network scripts to provision an IPv6 range >> like can be done with IPv4. I was using CentOS 5.2 at the time and was informed >> that 5.2 was broken in this regard. I have upgraded to CentOS 5.3 now and I am >> trying to get IPv6 to provision an entire range of IPs, but I am still getting >> the old behavior and no IPs are being provisioned. >> >> I have been following the docs provided by the link in the >> /etc/sysconfig/network-scripts/ifup-ipv6 at >> http://www.deepspace6.net/projects/initscripts-ipv6.html#id2801589 and using the >> following configs: >> >> /etc/sysconfig/network >> NETWORKING=yes >> GATEWAY=***.***.***.*** >> GATEWAYDEV=eth0 >> HOSTNAME=vadtec >> >> NETWORKING_IPV6=yes >> IPV6FORWARDING=no >> IPV6_AUTOCONF=no >> IPV6_AUTOTUNNEL=no >> IPV6_DEFAULTDEV=eth0:1 >> IPV6_DEFAULTGW=2001:0470:0103:001A::1 >> >> /etc/sysconfig/network-scripts/ifcfg-eth0-1 > Why do you need an alias device here? Put the ipv6 config on the eth0 > device,and add the configuration to the ifcfg-eth0 file > >> DEVICE=eth0:1 >> IPV6INIT=yes >> IPV6ADDR=2001:0470:0103:001A:0001:0000:0000:0000:/96 > You are allocating a /96 with all 0 in the last 32 bits. So you are not > allocating an address. Why a /96? Using a /64 is pretty much the > standard for ipv6. > >> IPV6_AUTOCONF=no >> IPV6_ROUTER=no >> IPV6FORWARDING=no >> ONBOOT=no >> >> When I run service network restart, it doesn't even provision the default IPv6 >> GW on eth0:1, nor does eth0:1 even show up. > I must admit I never tried an v6 address on an alias, so I have no clue > whether it works or not. But you can have both v4 and v6 addresses next > to each other on the eth0 device >> If I run tail /var/log/boot.log, boot.log is empty. If I run tail >> /var/log/messages, I see varying amounts of: >> >> Jun 10 11:42:14 localhost kernel: [208192.884652] eth0: duplicate address detected! >> > Probably due to the all 0 in the part AFTER the /96 >> I see no other errors or messages saying anything is wrong or otherwise. > Autoconfiguration is the way to go if you want to make it easy. On my > server I set the addresses manually like > DEVICE=eth0.159 > ONBOOT=yes > BOOTPROTO=none > NETMASK=255.255.255.0 > HWADDR=00:1a:92:d6:99:91 > IPADDR=192.168.159.1 > #GATEWAY=192.168.178.1 > TYPE=Ethernet > USERCTL=no > IPV6INIT=yes > IPV6FORWARDING="yes" > # v6 address changed to protect the innocent > IPV6ADDR="2001:888:118e:18a2::1/64" > PEERDNS=no > VLAN=yes > Please not that I am using vlans, hence the .159 on the eth0. Normally > you do not need that and you leave the VLAN=yes off. > Please note the ::1 at the end of the address. > I use radvd on that machine (so here I need to set fixed v6 addresses), > but the clients do not neede that: > > DEVICE=eth0 > BOOTPROTO=none > DNS1=192.168.159.1 > IPADDR=192.168.159.3 > NETMASK=255.255.255.0 > HWADDR=00:11:d8:be:98:fa > ONBOOT=yes > SEARCH="pheasant" > USERCTL=no > PEERDNS=no > IPV6INIT=yes > NM_CONTROLLED=yes > GATEWAY=192.168.159.1 > TYPE=Ethernet > > Here the address is set depending on the (/64) prefix received from the > radvd server..... > > kind regards, Louis > > > > > > > > > > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos Thanks for the tip about having all zeros at the end of the IP. I figured the script would go ahead and provision the IPs anyways. The reason I was using a /96 is because the machine happens to be a VPS with only 128MB of RAM, so I figured the less IPs I provision the less memory it will take up, which is limitted anyways. I also do not want to use radvd or auto configuration because I do not need to broadcast or forward ipv6 on this vps. As per your suggestions, I removed the extra zeros and changed the prefix to /64. I am now using the following configs: /etc/sysconfig/network: NETWORKING=yes GATEWAY=67.202.107.1 GATEWAYDEV=eth0 HOSTNAME=vadtec NETWORKING_IPV6=yes IPV6FORWARDING=no IPV6_AUTOCONF=no IPV6_AUTOTUNNEL=no IPV6_DEFAULTDEV=eth0 IPV6_DEFAULTGW="2001:0470:0103:001A::1" /etc/sysconfig/network-scripts/ifcfg-eth0: DEVICE=eth0 IPADDR=***.***.***.*** NETMASK=255.255.255.0 BROADCAST=***.***.***.*** ONBOOT=yes IPV6INIT=yes IPV6ADDR="2001:0470:0103:001A::2/64" IPV6_AUTOCONF=no IPV6_ROUTER=no IPV6FORWARDING=no PEERDNS=no VLAN=no However, this is not provisioning an entire range as follows: eth0 Link encap:Ethernet HWaddr 00:16:3E:70:FC:96 inet addr:***.***.***.*** Bcast:***.***.***.*** Mask:255.255.255.0 inet6 addr: 2001:470:103:1a::2/64 Scope:Global inet6 addr: fe80::216:3eff:fe70:fc96/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:70 errors:0 dropped:0 overruns:0 frame:0 TX packets:29 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:6738 (6.5 KiB) TX bytes:2050 (2.0 KiB) I also have a large number of "unreachable" routes shown on the local loopback when I do ip -6 route show: unreachable ::/96 dev lo metric 1024 error -101 mtu 16436 advmss 16376 hoplimit 4294967295 unreachable ::ffff:0.0.0.0/96 dev lo metric 1024 error -101 mtu 16436 advmss 16376 hoplimit 4294967295 unreachable 2002:a00::/24 dev lo metric 1024 error -101 mtu 16436 advmss 16376 hoplimit 4294967295 unreachable 2002:7f00::/24 dev lo metric 1024 error -101 mtu 16436 advmss 16376 hoplimit 4294967295 unreachable 2002:a9fe::/32 dev lo metric 1024 error -101 mtu 16436 advmss 16376 hoplimit 4294967295 unreachable 2002:ac10::/28 dev lo metric 1024 error -101 mtu 16436 advmss 16376 hoplimit 4294967295 unreachable 2002:c0a8::/32 dev lo metric 1024 error -101 mtu 16436 advmss 16376 hoplimit 4294967295 unreachable 2002:e000::/19 dev lo metric 1024 error -101 mtu 16436 advmss 16376 hoplimit 4294967295 unreachable 3ffe:ffff::/32 dev lo metric 1024 error -101 mtu 16436 advmss 16376 hoplimit 4294967295 I assume those are something to do with how IPv6 works, but I'm not sure. So, back to my original question, I have it provisioning *one* IP, how do I get it to provision a *range* of IPs. As I said above, this is a VPS that does not need to broadcast any of its IPs or forward IPv6. I just need to be able to provision a range of IPv6. Thanks for the help so far! Vadtec vadtec at vadtec.net -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iQIcBAEBAgAGBQJKMEi+AAoJEEJXIw5V8gievPMP/iA6PzdbmigK+arj37dUoHPg mK1bvfMtBwY6r3nbcCk4tNpGT4Ki30KRZ3+o0vZfA6bJ9taiFbnsWBFeHCxoull8 0wtmdFu5X8O5/N+oNptHRucPZlctOp0pruGCsSl7l0Q01CSC9MRyD/H+GInoQ/5c dICTK127hA1ia4e0rk/LSqIYUZrM+9ytjyiePEZwyzzVdshtBcI/MiJykMKy7Zvn b0uOXzW3sk07ROe4QhCvQ8wFvRMOANHbCerMUokVTnuSdHg3KAb/WXtW8LDgPmeB tibNXHeE7J0jflJ2O3M9ixQocyZB4BNdwJBtEROB430vVMRJXA5vdruYqYZuWPzr CLWZXzQYQhPnRNWfajBYhiPOfplIesdc4BvaND1pAkeZMUbZclAfXI2OHSNsmpNp rEnOHAKmVaKtOt6cAzYNRNKVfbkwXAYkiRCqEg9S3PJp7oQ7yxe63N5sHNns5iAW zQH8cvMAD+5bTkU9iiAf1SblRKrpujeNhysA2lGdda82Af5wHL+DdxjZ6Lys/utv MiE+Og8kcqAKCsezTZvy4IIpoYnrp6lMk/IkDoB8AyiPre9/T3BOjkfKT4BdRAfU oichZv5nFLQu7pPV7d4zwo1eUxy4nAvXUpLSi+p/WE6kAdC53NwACGAs899dg9kb WRo5kPc/ipNLOrqyBzh8 =9ADO -----END PGP SIGNATURE-----