Date: Tue, 3 Oct 2006 9:40:53 +1000 From: <fwun@bigpond.net.au> Cc: freebsd-net@freebsd.org Subject: Re: IPSEC & PF - Please help Message-ID: <128414.1159832453736.JavaMail.root@web07ps>
next in thread | raw e-mail | index | archive | help
Here is the article I read about patch for PF: http://www.mail-archive.com/freebsd-pf@freebsd.org/msg01315.html Where can I find an official release of this patch for freebsd 6.1? the FreeBSD 6.1-stable I m using is dated in early August. Thanks S ---- fwun@bigpond.net.au wrote: > Hi, > > I am having trouble in setting up IPSEC with a remote office. I desperately need help to sort out the problem. > Here is the description of this little network: > > My Office (with Cable Internet, sis0 is the public interface): > sis0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 > options=8<VLAN_MTU> > inet6 fe80::20d:b9ff:fe03:e22c%sis0 prefixlen 64 scopeid 0x1 > inet 60.225.5.1 netmask 0xfffffc00 broadcast 255.255.255.255 > ether 00:0d:b9:03:e2:2c > media: Ethernet autoselect (100baseTX <full-duplex>) > status: active > sis1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 > options=8<VLAN_MTU> > inet6 fe80::20d:b9ff:fe03:e22d%sis1 prefixlen 64 scopeid 0x2 > inet 192.168.0.254 netmask 0xffffff00 broadcast 192.168.0.255 > inet 10.1.10.1 netmask 0xff000000 broadcast 10.255.255.255 > ether 00:0d:b9:03:e2:2d > media: Ethernet autoselect (100baseTX <full-duplex>) > status: active > lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384 > inet6 ::1 prefixlen 128 > inet6 fe80::1%lo0 prefixlen 64 scopeid 0x4 > inet 127.0.0.1 netmask 0xff000000 > inet 10.1.1.1 netmask 0xffffff00 > pflog0: flags=41<UP,RUNNING> mtu 33208 > pfsync0: flags=41<UP,RUNNING> mtu 2020 > gif102: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 1280 > tunnel inet 60.225.5.1 --> 203.33.16.32 > inet 10.1.1.1 --> 10.1.1.100 netmask 0xffffff00 > inet6 fe80::20d:b9ff:fe03:e22c%gif102 prefixlen 64 scopeid 0x7 > > Ric's Office (with ADSL boardband): > sis0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 > options=8<VLAN_MTU> > inet6 fe80::20d:b9ff:fe03:eb40%sis0 prefixlen 64 scopeid 0x1 > ether 00:0d:b9:03:eb:40 > media: Ethernet autoselect (10baseT/UTP) > status: active > sis1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 > options=8<VLAN_MTU> > inet6 fe80::20d:b9ff:fe03:eb41%sis1 prefixlen 64 scopeid 0x2 > inet 192.168.0.1 netmask 0xffffff00 broadcast 192.168.0.255 > inet 10.1.100.1 netmask 0xffffff00 broadcast 10.1.100.255 > ether 00:0d:b9:03:eb:41 > media: Ethernet autoselect (100baseTX <full-duplex>) > status: active > lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384 > inet6 ::1 prefixlen 128 > inet6 fe80::1%lo0 prefixlen 64 scopeid 0x4 > inet 127.0.0.1 netmask 0xff000000 > inet 10.1.1.100 netmask 0xffffff00 > pflog0: flags=41<UP,RUNNING> mtu 33208 > pfsync0: flags=41<UP,RUNNING> mtu 2020 > tun0: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 1492 > inet 203.33.16.32 --> 203.17.1.1 netmask 0xffffffff > Opened by PID 362 > > #Script for establish IPSEC at My Office: > /sbin/ifconfig lo0 inet 10.1.1.1/24 alias > setkey -FP > setkey -F > > # Tunnel to Ric office > /sbin/ifconfig gif102 destroy > /sbin/ifconfig gif102 create > /sbin/ifconfig gif102 tunnel 60.225.5.1 203.33.16.32 > /sbin/ifconfig gif102 inet 10.1.1.1 10.1.1.100 netmask 255.255.255.0 > /sbin/route delete 10.1.100.1/24 > /sbin/route delete 172.17.100.0/24 > /sbin/route add 10.1.100.1/24 10.1.1.100 > /sbin/route add 172.17.100.0/24 10.1.1.100 > > setkey -c << EOF > > Firewall rule at My (SAm)'s office: > # pfctl -sr > pass in on sis1 inet proto tcp from any to 127.0.0.1 port = 3128 keep state > pass out on sis0 inet proto tcp from any to any port = http keep state > block drop in log all > block drop in log quick on sis0 inet proto udp from any to 255.255.255.255 > block drop in log quick on sis1 inet proto udp from any to 255.255.255.255 > pass in on lo0 all > pass out quick on sis0 all keep state > pass out quick on sis1 all keep state > pass in on sis1 all keep state > pass out on sis0 proto tcp all flags S/SA keep state > pass out on sis1 proto tcp all flags S/SA keep state > pass in on sis0 proto tcp from any to any port = ssh flags S/SA keep state > pass in on sis0 proto tcp from any to any port = http flags S/SA keep state > pass in on sis0 proto udp from any to any port = commplex-main keep state > pass in quick on ath0 all keep state > pass in quick on sis0 inet proto esp from 60.225.5.1 to 203.33.16.32 > pass out quick on sis0 inet proto esp from 203.33.16.32 to 60.225.5.1 > pass in quick proto ipencap all > pass in quick inet from 10.1.100.0/24 to 10.1.1.0/24 > pass out quick inet from 10.1.1.0/24 to 10.1.100.0/24 > pass in quick inet from 10.1.1.0/24 to any > pass in quick on sis0 inet proto udp from 60.225.5.1 to 203.33.16.32 port = isakmp > pass out quick on sis0 inet proto udp from 203.33.16.32 to 60.225.5.1 port = isakmp > pass quick on gif102 all > > Nework routing table at My (SAm)'s office: > # netstat -rn | less > Routing tables > > Internet: > Destination Gateway Flags Refs Use Netif Expire > default 60.225.5.111 UGS 0 55131 sis0 > 10 link#2 UC 0 1 sis1 > 10.1.1.1 10.1.1.1 UH 0 0 lo0 > 10.1.100/24 10.1.1.100 UGS 0 7 gif102 > 60.225.5/22 link#1 UC 0 0 sis0 > 60.225.5.111 00:0f:35:45:78:70 UHLW 2 0 sis0 1200 > 127.0.0.1 127.0.0.1 UH 0 541 lo0 > 172.17.4/24 link#3 UC 0 0 ath0 > 172.17.100/24 10.1.1.100 UGS 0 0 gif102 > 192.168.0 link#2 UC 0 0 sis1 > > # Tunnel to Ric office > spdadd 10.1.1.1 10.1.1.100 any -P out ipsec esp/tunnel/10.1.1.1-10.1.1.100/require ; > spdadd 10.1.1.100 10.1.1.1 any -P in ipsec esp/tunnel/10.1.1.100-10.1.1.1/require ; > add 10.1.1.1 10.1.1.100 esp 2744 -m tunnel -E blowfish-cbc 0xC0AD6D1F390BBECD431A75A3461C2FD62433DD1D947804CAD75133DABF2F25C4B6F928521AECE611218C007CE917CC986CF36382DB29D11B -A hmac-sha1 0xB4D3FBE932C36E1D09BA4827F78A542D37C936BE ; > add 10.1.1.100 10.1.1.1 esp 3944 -m tunnel -E blowfish-cbc 0xB4E4556530711A5831A8289B4A8DB9334F62A878E6FAAF889A243FEA7BDEEE3058A4E8220289C02A09321BEFE0619AA641006F3C02230B3B -A hmac-sha1 0xAFB28AABC10B4B704A730CB070A719ED93254AB6 ; > > #Script for establish IPSEC at Ric's office: > /sbin/ifconfig lo0 inet 10.1.1.100/24 alias > setkey -FP > setkey -F > > # Tunnel to Sam Office > /sbin/ifconfig gif102 destroy > /sbin/ifconfig gif102 create > /sbin/ifconfig gif102 tunnel 203.33.16.32 60.225.5.1 > /sbin/ifconfig gif102 inet 10.1.1.100 10.1.1.1 netmask 255.255.255.0 > /sbin/route delete 10.1.1.1/24 > /sbin/route delete 172.17.4.0/24 > /sbin/route add 10.1.1.1/24 10.1.1.1 > /sbin/route add 172.17.4.0/24 10.1.1.1 > > setkey -c << EOF > > # Tunnel to Sam office > spdadd 10.1.1.100 10.1.1.1 any -P out ipsec esp/tunnel/10.1.1.100-10.1.1.1/require ; > spdadd 10.1.1.1 10.1.1.100 any -P in ipsec esp/tunnel/10.1.1.1-10.1.1.100/require ; > add 10.1.1.100 10.1.1.1 esp 2744 -m tunnel -E blowfish-cbc 0xC0AD6D1F390BBECD431A75A3461C2FD62433DD1D947804CAD75133DABF2F25C4B6F928521AECE611218C007CE917CC986CF36382DB29D11B -A hmac-sha1 0xB4D3FBE932C36E1D09BA4827F78A542D37C936BE ; > add 10.1.1.1 10.1.1.100 esp 3944 -m tunnel -E blowfish-cbc 0xB4E4556530711A5831A8289B4A8DB9334F62A878E6FAAF889A243FEA7BDEEE3058A4E8220289C02A09321BEFE0619AA641006F3C02230B3B -A hmac-sha1 0xAFB28AABC10B4B704A730CB070A719ED93254AB6 ; > > > EOF > > Firewall rule at Ric's office: > # pfctl -sr > pass in on sis1 inet proto tcp from any to 127.0.0.1 port = 3128 keep state > pass out on tun0 inet proto tcp from any to any port = http keep state > block drop in log all > block drop in log quick on tun0 inet proto udp from any to 255.255.255.255 > block drop in log quick on sis1 inet proto udp from any to 255.255.255.255 > pass in on lo0 all > pass out quick on tun0 all keep state > pass out quick on sis1 all keep state > pass in on sis1 all keep state > pass out on tun0 proto tcp all flags S/SA keep state > pass out on sis1 proto tcp all flags S/SA keep state > pass in on tun0 proto tcp from any to any port = ssh flags S/SA keep state > pass in on tun0 proto tcp from any to any port = http flags S/SA keep state > pass in on tun0 proto udp from any to any port = commplex-main keep state > pass in quick on ath0 all keep state > pass in quick on tun0 inet proto esp from 203.33.16.32 to 60.225.5.1 > pass out quick on tun0 inet proto esp from 60.225.5.1 to 203.33.16.32 > pass in quick proto ipencap all > pass in quick inet from 10.1.1.0/24 to 10.1.100.0/24 > pass in quick inet from 10.1.1.0/24 to 10.1.1.0/24 > pass out quick inet from 10.1.100.0/24 to 10.1.1.0/24 > pass out quick inet from 10.1.100.0/24 to 10.1.100.0/24 > pass in quick on tun0 inet proto udp from 203.33.16.32 to 60.225.5.1 port = isakmp > pass out quick on tun0 inet proto udp from 60.225.5.1 to 203.33.16.32 port = isakmp > pass quick on gif102 all > > Network routing table at Ric's office: > # netstat -rn > Routing tables > > Internet: > Destination Gateway Flags Refs Use Netif Expire > default 203.17.101.81 UGS 0 2005455 tun0 > 10.1.1/24 10.1.1.1 UGS 0 0 gif102 > 10.1.1.1 10.1.1.100 UH 972 1015 gif102 > 10.1.1.100 10.1.1.100 UH 0 16 lo0 > 10.1.100/24 link#2 UC 0 0 sis1 > 10.1.100.1 00:0d:b9:03:eb:41 UHLW 1 10 lo0 > 127.0.0.1 127.0.0.1 UH 0 3335 lo0 > 172.17.4/24 10.1.1.1 UGS 0 586 gif102 > 192.168.0 link#2 UC 0 1 sis1 > 192.168.0.198 00:0d:60:ff:b7:1f UHLW 1 1141717 sis1 818 > 192.168.0.200 00:14:22:fd:cc:8f UHLW 1 9945 sis1 > 203.17.10.8 203.33.16.32 UH 1 0 tun0 > > The problem is My (Sam) office can ping 10.1.100.1 at Ric's office, but I still can't ping his other IP 10.1.1.100 (assigned to his loopback lo interfaice). > Ric's office can't ping me (Sam) 10.1.1.1 or 10.1.10.1 at all. Tcpdump shown that the PF firewall blocked the incoming packet from 10.1.1/24, then I make a "pass" rule to let it thru. But Ric still can't ping 10.1.1.1 and 10.1.10.1 > > And I read the following article from PF mailing, it might be the issue in PF. > Can anyone please shed some lights to me? I desperately want to get this working. > > Thanks > S
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?128414.1159832453736.JavaMail.root>