IPSEC & PF - Please help
fwun at bigpond.net.au
fwun at bigpond.net.au
Mon Oct 2 21:02:09 PDT 2006
---- Max Laier <max at love2party.net> wrote:
> On Tuesday 03 October 2006 01:40, fwun at bigpond.net.au wrote:
> > 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.
>
> enc(4) was MFCed to RELENG_6 "Mon Jul 24 23:20:58 2006 UTC (2 months, 1
> week ago." If you move to RELENG_6 or the upcoming BETA build you should
> get it with no patching. If you need it in 6.1 you'd have to backport it
> yourself, but this should be more or less the same patch as the MFC.
>
Hi, I found recent 6.1 stable source has some foot-prints of enc or if_enc . I m not sure if enc paches had actually in recent 6.1-stable srource. If not, where can I get the enc patch from?
Thanks
S
> > ---- fwun at 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
> > > 0xC0AD6D1F390BBECD431A75A3461C2FD62433DD1D947804CAD75133DABF2F25C4B6F
> > >928521AECE611218C007CE917CC986CF36382DB29D11B -A hmac-sha1
> > > 0xB4D3FBE932C36E1D09BA4827F78A542D37C936BE ; add 10.1.1.100 10.1.1.1
> > > esp 3944 -m tunnel -E blowfish-cbc
> > > 0xB4E4556530711A5831A8289B4A8DB9334F62A878E6FAAF889A243FEA7BDEEE3058A
> > >4E8220289C02A09321BEFE0619AA641006F3C02230B3B -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
> > > 0xC0AD6D1F390BBECD431A75A3461C2FD62433DD1D947804CAD75133DABF2F25C4B6F
> > >928521AECE611218C007CE917CC986CF36382DB29D11B -A hmac-sha1
> > > 0xB4D3FBE932C36E1D09BA4827F78A542D37C936BE ; add 10.1.1.1 10.1.1.100
> > > esp 3944 -m tunnel -E blowfish-cbc
> > > 0xB4E4556530711A5831A8289B4A8DB9334F62A878E6FAAF889A243FEA7BDEEE3058A
> > >4E8220289C02A09321BEFE0619AA641006F3C02230B3B -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
> >
> > _______________________________________________
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>
> --
> /"\ Best regards, | mlaier at freebsd.org
> \ / Max Laier | ICQ #67774661
> X http://pf4freebsd.love2party.net/ | mlaier at EFnet
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