I’m trying to setup NAT on the OpenVPN tunnel, but I couldn’t get it to work.
NAT on LAN works normal. I’ve setup a new interface incl. outbound NAT and named it WAN2. WAN2 external, let’s take 2.2.2.2. So, for testing, I tried with port 22 forwarding onto an internal device. Connecting from external to 2.2.2.2 is not possible, so I thought, I could easly create a forwarding rule onto the WAN2, like I did it with WAN1, but port 22 isn’t reachable and seems closed on 2.2.2.2. Also http://www.canyouseeme.org/ <http://www.canyouseeme.org/> says, port is closed. NAT rules are set, firewall also on the WAN2 tab. Any suggestions? $ cat /tmp/rules.debug set optimization normal set timeout { adaptive.start 0, adaptive.end 0 } set limit states 22000 set limit src-nodes 22000 #System aliases loopback = "{ lo0 }" WAN1 = "{ vr1 }" LAN = "{ vr0 }" DMZ = "{ vr2 }" WAN2 = "{ ovpnc1 }" IPsec = "{ enc0 }" OpenVPN = "{ openvpn }" #SSH Lockout Table table <sshlockout> persist table <webConfiguratorlockout> persist #Snort tables table <snort2c> table <virusprot> table <bogons> persist file "/etc/bogons" table <vpn_networks> { 10.0.8.0/24 } table <negate_networks> { 10.0.8.0/24 } # User Aliases # Gateways GWWANGW = " route-to ( vr1 172.16.0.1 ) " GWWAN2_VPNV4 = " route-to ( ovpnc1 10.177.1.5 ) " set loginterface vr0 set skip on pfsync0 scrub from any to <vpn_networks> max-mss 1400 scrub from <vpn_networks> to any max-mss 1400 scrub on $WAN1 all fragment reassemble scrub on $LAN all fragment reassemble scrub on $DMZ all fragment reassemble scrub on $WAN2 all fragment reassemble no nat proto carp no rdr proto carp nat-anchor "natearly/*" nat-anchor "natrules/*" # Outbound NAT rules (manual) nat on $WAN1 from 127.0.0.0/8 to any port 500 -> 172.16.0.22/32 static-port nat on $WAN2 from 127.0.0.0/8 to any port 500 -> 2.2.2.2/32 static-port nat on $WAN1 from 127.0.0.0/8 to any -> 172.16.0.22/32 port 1024:65535 nat on $WAN2 from 127.0.0.0/8 to any -> 2.2.2.2/32 port 1024:65535 nat on $WAN1 from 10.0.0.0/24 to any port 500 -> 172.16.0.22/32 static-port nat on $WAN2 from 10.0.0.0/24 to any port 500 -> 2.2.2.2/32 static-port nat on $WAN1 from 10.0.0.0/24 to any -> 172.16.0.22/32 port 1024:65535 nat on $WAN2 from 10.0.0.0/24 to any -> 2.2.2.2/32 port 1024:65535 nat on $WAN1 from 19281.0/24 to any port 500 -> 172.16.0.22/32 static-port nat on $WAN1 from 192.168.1.0/24 to any -> 172.16.0.22/32 port 1024:65535 # Load balancing anchor rdr-anchor "relayd/*" # TFTP proxy rdr-anchor "tftp-proxy/*" # NAT Inbound Redirects rdr on vr1 proto tcp from any to 172.16.0.22 port 25 -> 10.0.0 rr on vr1 proto tcp from any to 172.16.0.22 port 443 -> 10.0.0.5 rdr on vr1 proto tcp from any to 172.16.0.22 port 80 -> 10.0.0.5 rdr on vr1 proto tcp from any to 172.16.0.22 port 143 -> 10.0.0.5 rdr on vr1 proto tcp from any to 172.16.0.22 port 236:237 -> 10.0.0.5 rdr on vr1 proto tcp from any to 172.16.0.22 port 465 -> 10.0.0.5 rdr on vr1 proto tcp from 5.45.103.97 to 172.16.0.22 port 822 -> 192.168.1.2 port 22 rdr on vr1 proto tcp from 5.45.99.228 to 172.16.0.22 port 823 -> 192.168.1.3 port 22 rdr on vr1 proto tcp from any to 172.16.0.22 port 993 -> 10.0.0.5 rdr on vr1 proto tcp from 37.120.163.136 to 172.16.0.22 port 4041 -> 192.168.1.3 port 80 rdr on vr1 proto tcp from any to 172.16.0.22 port 8080 -> 10.0.0.5 rdr on vr1 proto tcp from any to 172.16.0.22 port 8333 -> 192.168.1.5 rdr on vr1 proto tcp from any to 172.16.0.22 port 8443 -> 10.0.0.5 rdr on ovpnc1 proto { tcp udp } from any to any port 28864:28865 -> 10.0.0.2 # Reflection redirect rdr on { vr0 vr2 enc0 openvpn } proto { tcp udp } from any to 2.2.2.2/32 port 28864:28865 -> 10.0.0.2 rdr on vr1 proto tcp from 37.120.163.136 to 172.16.0.22 port 4040 -> 10.0.0.8 # UPnPd rdr anchor rdr-anchor "miniupnpd" anchor "relayd/*" anchor "openvpn/*" anchor "ipsec/*" # Allow IPv6 on loopback pass in quick on $loopback inet6 all tracker 1000000001 label "pass IPv6 loopback" pass out quick on $loopback inet6 all tracker 1000000002 label "pass IPv6 loopback" # Block all IPv6 block in log quick inet6 all tracker 1000000003 label "Block all IPv6" block out log quick inet6 all tracker 1000000004 label "Block all IPv6" # block IPv4 link-local. Per RFC 3927, link local "MUST NOT" be forwarded by a routing device, # and clients "MUST NOT" send such packets to a router. FreeBSD won't route 169.254./16, but # route-to can override that, causing problems such as in redmine #2073 block in log quick from 169.254.0.0/16 to any tracker 1000000101 label "Block IPv4 link-local" block in log quick from any to 169.254.0.0/16 tracker 1000000102 label "Block IPv4 link-local" #--------------------------------------------------------------------------- # default deny rules #--------------------------------------------------------------------------- block in log inet all tracker 1000000103 label "Default deny rule IPv4" block out log inet all tracker 1000000104 label "Default deny rule IPv4" block in log inet6 all tracker 1000000105 label "Default deny rule IPv6" block out log inet6 all tracker 1000000106 label "Default deny rule IPv6" # IPv6 ICMP is not auxilary, it is required for operation # See man icmp6(4) # 1 unreach Destination unreachable # 2 toobig Packet too big # 128 echoreq Echo service request # 129 echorep Echo service reply # 133 routersol Router solicitation # 134 routeradv Router advertisement # 135 neighbrsol Neighbor solicitation # 136 neighbradv Neighbor advertisement pass quick inet6 proto ipv6-icmp from any to any icmp6-type {1,2,135,136} tracker 1000000107 keep state # Allow only bare essential icmpv6 packets (NS, NA, and RA, echoreq, echorep) pass out quick inet6 proto ipv6-icmp from fe80::/10 to fe80::/10 icmp6-type {129,133,134,135,136} tracker 1000000108 keep state pass out quick inet6 proto ipv6-icmp from fe80::/10 to ff02::/16 icmp6-type {129,133,134,135,136} tracker 1000000109 keep state pass in quick inet6 proto ipv6-icmp from fe80::/10 to fe80::/10 icmp6-type {128,133,134,135,136} tracker 1000000110 keep state pass in quick inet6 proto ipv6-icmp from ff02::/16 to fe80::/10 icmp6-type {128,133,134,135,136} tracker 1000000111 keep state pass in quick inet6 proto ipv6-icmp from fe80::/10 to ff02::/16 icmp6-type {128,133,134,135,136} tracker 1000000112 keep state # We use the mighty pf, we cannot be fooled. block log quick inet proto { tcp, udp } from any port = 0 to any tracker 1000000113 block log quick inet proto { tcp, udp } from any to any port = 0 tracker 1000000114 block log quick inet6 proto { tcp, udp } from any port = 0 to any tracker 1000000115 block log quick inet6 proto { tcp, udp } from any to any port = 0 tracker 1000000116 # Snort package block log quick from <snort2c> to any tracker 1000000117 label "Block snort2c hosts" block log quick from any to <snort2c> tracker 1000000118 label "Block snort2c hosts" # SSH lockout block in log quick proto tcp from <sshlockout> to (self) port 22 tracker 1000000301 label "sshlockout" # webConfigurator lockout block in log quick proto tcp from <webConfiguratorlockout> to (self) port 443 tracker 1000000351 label "webConfiguratorlockout" block in log quick from <virusprot> to any tracker 1000000400 label "virusprot overload table" antispoof log for $WAN1 tracker 10001570 # allow our DHCP client out to the WAN1 pass in on $WAN1 proto udp from any port = 67 to any port = 68 tracker 1000001591 label "allow dhcp client out WAN1" pass out on $WAN1 proto udp from any port = 68 to any port = 67 tracker 1000001592 label "allow dhcp client out WAN1" # Not installing DHCP server firewall rules for WAN1 which is configured for DHCP. antispoof log for $LAN tracker 1000002620 # allow access to DHCP server on LAN pass in quick on $LAN proto udp from any port = 68 to 255.255.255.255 port = 67 tracker 1000002641 label "allow access to DHCP server" pass in quick on $LAN proto udp from any port = 68 to 10.0.0.1 port = 67 tracker 1000002642 label "allow access to DHCP server" pass out quick on $LAN proto udp from 10.0.0.1 port = 67 to any port = 68 tracker 1000002643 label "allow access to DHCP server" antispoof log for $DMZ tracker 1000003670 # allow access to DHCP server on DMZ pass in quick on $DMZ proto udp from any port = 68 to 255.255.255.255 port = 67 tracker 1000003691 label "allow access to DHCP server" pass in quick on $DMZ proto udp from any port = 68 to 192.168.1.1 port = 67 tracker 1000003692 label "allow access to DHCP server" pass out quick on $DMZ proto udp from 192.168.1.1 port = 67 to any port = 68 tracker 1000003693 label "allow access to DHCP server" antispoof log for $WAN2 tracker 1000004720 # loopback pass in on $loopback inet all tracker 1000006861 label "pass IPv4 loopback" pass out on $loopback inet all tracker 1000006862 label "pass IPv4 loopback" pass in on $loopback inet6 all tracker 1000006863 label "pass IPv6 loopback" pass out on $loopback inet6 all tracker 1000006864 label "pass IPv6 loopback" # let out anything from the firewall host itself and decrypted IPsec traffic pass out inet all keep state allow-opts tracker 1000006865 label "let out anything IPv4 from firewall host itself" pass out inet6 all keep state allow-opts tracker 1000006866 label "let out anything IPv6 from firewall host itself" pass out route-to ( vr1 172.16.0.1 ) from 172.16.0.22 to !172.16.0.0/24 tracker 1000006961 keep state allow-opts label "let out anything from firewall host itself" pass out route-to ( ovpnc1 10.177.1.5 ) from 2.2.2.2 to !2.2.2.2/32 tracker 1000006962 keep state allow-opts label "let out anything from firewall host itself" pass out on $IPsec all tracker 1000007261 tracker 1000007262 keep state label "IPsec internal host to host" # make sure the user cannot lock himself out of the webConfigurator or SSH pass in quick on vr0 proto tcp from any to (vr0) port { 443 80 22 } tracker 1000007271 keep state label "anti-lockout rule" # User-defined rules follow anchor "userrules/*" pass in quick on $OpenVPN inet from 2.2.2.2 to any tracker 1426214069 keep state label "USER_RULE" pass in quick on $OpenVPN from any to any keep state label "USER_RULE: OpenVPN wizard" # array key "pptp" does not exist for "" in array: {WAN1 LAN DMZ WAN2 IPsec OpenVPN } label "USER_RULE" pass in quick on $WAN1 proto tcp from any to 10.0.0.5 port 25 flags S/SA keep state label "USER_RULE: NAT " pass in quick on $WAN1 proto tcp from any to 10.0.0.5 port 443 flags S/SA keep state label "USER_RULE: NAT " pass in quick on $WAN1 proto tcp from any to 10.0.0.5 port 80 flags S/SA keep state label "USER_RULE: NAT " pass in quick on $WAN1 proto tcp from any to 10.0.0.5 port 143 flags S/SA keep state label "USER_RULE: NAT " pass in quick on $WAN1 proto tcp from any to 10.0.0.5 port 235 >< 238 flags S/SA keep state label "USER_RULE: NAT " pass in quick on $WAN1 proto tcp from any to 10.0.0.5 port 465 flags S/SA keep state label "USER_RULE: NAT " pass in quick on $WAN1 proto tcp from 5.45.103.97 to 192.168.1.2 port 22 flags S/SA keep state label "USER_RULE: NAT MCBackup" pass in quick on $WAN1 proto tcp from 5.45.99.228 to 192.168.1.3 port 22 flags S/SA keep state label "USER_RULE: NAT GitLab" pass in quick on $WAN1 proto tcp from any to 10.0.0.5 port 993 flags S/SA keep state label "USER_RULE: NAT " pass in quick on $WAN1 proto tcp from 37.120.163.136 to 192.168.1.3 port 80 flags S/SA keep state label "USER_RULE: NAT GitLab" pass in quick on $WAN1 proto tcp from any to 10.0.0.5 port 8080 flags S/SA keep state label "USER_RULE: NAT " pass in quick on $WAN1 proto tcp from any to 192.168.1.5 port 8333 flags S/SA keep state label "USER_RULE: NAT " pass in quick on $WAN1 proto tcp from any to 10.0.0.5 port 8443 flags S/SA keep state label "USER_RULE: NAT " pass in quick on $WAN1 proto tcp from 37.120.163.136 to 10.0.0.8 port 4040 flags S/SA keep state label "USER_RULE: NAT " pass in quick on $WAN1 proto udp from any to 172.16.0.22 port 1194 keep state label "USER_RULE: OpenVPN wizard" pass in quick on $LAN $GWWAN2_VPNV4 inet from 10.0.0.2 to !10.0.0.0/24 tracker 1426209564 keep state label "USER_RULE" pass in quick on $LAN $GWWAN2_VPNV4 inet proto { tcp udp } from 10.0.0.52 to !10.0.0.0/24 port 80 tracker 1426433917 keep state label "USER_RULE" pass in quick on $LAN $GWWAN2_VPNV4 inet from 10.0.0.52 to 85.25.111.231 tracker 1426356002 keep state label "USER_RULE" pass in quick on $LAN $GWWAN2_VPNV4 inet from 10.0.0.52 to 178.33.77.82 tracker 1426425311 keep state label "USER_RULE" pass in quick on $LAN inet from 10.0.0.0/24 to any tracker 0100000101 keep state label "USER_RULE: Default allow LAN to any rule" pass in quick on $DMZ $GWWANGW inet from any to !10.0.0.0/24 tracker 1426231951 keep state label "USER_RULE" pass in log quick on $WAN2 inet proto { tcp udp } from any to 10.0.0.2 port 28863 >< 28866 tracker 1426231596 keep state label "USER_RULE: NAT Torrents" # VPN Rules anchor "tftp-proxy/*"
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