Date: Fri, 10 Apr 2009 18:51:48 +0200 (CEST) From: JAKO Andras <jako.andras@eik.bme.hu> To: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net> Cc: freebsd-jail@freebsd.org Subject: Re: lo0's IPv6 address overwritten Message-ID: <Pine.GSO.4.64.0904101837350.5138@mono> In-Reply-To: <20090410135647.E15361@maildrop.int.zabbadoz.net> References: <Pine.GSO.4.64.0904101149270.12199@mono> <20090410135647.E15361@maildrop.int.zabbadoz.net>
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> testing this on a bit older HEAD: > > ifconfig lo1 create inet6 2001:738:2001:1000::2/128 > ifconfig lo0 ; ifconfig lo1 > lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384 > options=3<RXCSUM,TXCSUM> > inet 127.0.0.1 netmask 0xff000000 > inet6 ::1 prefixlen 128 > inet6 fe80::1%lo0 prefixlen 64 scopeid 0x1 lo1: > flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384 > options=3<RXCSUM,TXCSUM> > inet6 2001:738:2001:1000::2 prefixlen 128 jail -l -U root -i / > hostname "2001:738:2001:1000::2" /bin/sh > 1 > # sysctl security.jail.jailed > security.jail.jailed: 1 > # ifconfig lo0; ifconfig lo1 > lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384 > options=3<RXCSUM,TXCSUM> > lo1: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384 > options=3<RXCSUM,TXCSUM> > inet6 2001:738:2001:1000::2 prefixlen 128 This works fine here too. > I wonder what's going onfor you. Can you check with > netstat -rn -f inet6 > that what you are seeing is indeed true? It's always the same: Internet6: Destination Gateway Flags Netif Expire ::/96 ::1 UGRS lo0 => default fe80::1%em0 UGS em0 ::1 ::1 UHL lo0 ::ffff:0.0.0.0/96 ::1 UGRS lo0 2001:738:2001:1000::2 link#5 UHL lo0 2001:738:2001:2001::/64 link#3 UC em0 2001:738:2001:2001::62 00:1b:21:30:ee:7e UHL lo0 fe80::/10 ::1 UGRS lo0 fe80::%em0/64 link#3 UC em0 fe80::1%em0 00:06:52:7c:64:40 UHLW em0 fe80::21b:21ff:fe30:ee7e%em0 00:1b:21:30:ee:7e UHL lo0 fe80::%lo0/64 fe80::1%lo0 U lo0 fe80::1%lo0 link#4 UHL lo0 ff01:3::/32 link#3 UC em0 ff01:4::/32 ::1 UC lo0 ff01:5::/32 2001:738:2001:1000::2 UC lo1 ff02::/16 ::1 UGRS lo0 ff02::%em0/32 link#3 UC em0 ff02::%lo0/32 ::1 UC lo0 ff02::%lo1/32 2001:738:2001:1000::2 UC lo1 > Can you try starting the jail to get an interactive shell and not > running any scripts like I did and check what happens then? That works, and ifconfig doesn't show any change on lo0. I found that when I start a telnet in the jail to an arbitrary global IPv6 address, lo0's ::1 changes to the jail's IPv6 address. The routing table doesn't change. Andras
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