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Date:      Tue, 26 Jul 2005 17:50:06 +0300
From:      Casper <kl@os.lv>
To:        freebsd-questions@freebsd.org
Subject:   jail networking
Message-ID:  <42E64D9E.5080106@os.lv>

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  Hi,

  I have problem with setuping network to jail...
  I have #uname -a
FreeBSD gam.zuze.lv 5.4-RELEASE-p5 FreeBSD Wed Jul 20 19:52:44 EEST 2005
and installed jail on it...
sysctl:
net.inet.ip.forwarding: 1
security.jail.set_hostname_allowed: 1
security.jail.socket_unixiproute_only: 1
security.jail.sysvipc_allowed: 0
security.jail.getfsstatroot_only: 1
security.jail.allow_raw_sockets: 1
security.jail.chflags_allowed: 0
security.jail.jailed: 0

from host ping:
# ping www.google.lv
PING www.l.google.com (216.239.59.104): 56 data bytes
64 bytes from 216.239.59.104: icmp_seq=0 ttl=245 time=64.608 ms
64 bytes from 216.239.59.104: icmp_seq=1 ttl=245 time=65.198 ms
2 packets transmitted, 2 packets received, 0% packet loss

from jail:
jail# ping www.google.lv
PING www.l.google.com (216.239.59.99): 56 data bytes
^C
--- www.l.google.com ping statistics ---
3 packets transmitted, 0 packets received, 100% packet loss

but traceroute from jail show every second packet:
4  latnet.to.lattelekom.lv (195.13.173.221)  4.324 ms *  4.810 ms
  5  * so-4-0-0-war1.lnt.cw.net (166.63.222.101)  54.223 ms *
  6  so-7-0-0-zcr2.lnt.cw.net (166.63.222.42)  72.205 ms *  54.778 ms
  7  * 195.66.226.125 (195.66.226.125)  90.496 ms *
  8  216.239.46.173 (216.239.46.173)  54.711 ms *  54.204 ms
  9  * 216.239.49.254 (216.239.49.254)  64.939 ms *
10  216.239.49.121 (216.239.49.121)  67.530 ms * 216.239.49.114 
(216.239.49.114)  68.128 ms
11  * 216.239.59.103 (216.239.59.103)  64.615 ms *

 From jail I can ping router and local network ips...

My pf.conf:
ext_if="rl0"
int_if="rl1"
internal_net="172.22.1.0/24"
external_addr="xx.xx.xx.xx"
table <foo> { 10.0.0.0/8, 127.0.0.0/8, 172.22.0.0/24, 192.168.0.0/24 }
set loginterface $ext_if
set block-policy return
scrub in all
nat on $ext_if from $internal_net to any -> ($ext_if)
pass in all
pass out all
pass  in  on $ext_if proto tcp from any to $ext_if port 22 keep state
pass  out on $ext_if proto { tcp, udp } all keep state
pass in on $ext_if proto { tcp, udp } from any to <foo> port 80 keep state
pass out on $ext_if from 192.168.0.0/24 to any keep state queue developers
pass out on $ext_if from 192.168.1.0/24 to any keep state queue marketing


There is some manual about jail networking?
I don`t understand why not working jail network if I can ping router 
from jail, routes ok and traceroute strange packets...

tnx,

Casper




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