I'm trying to configure a backup/replacement of a Sonicwall firewall which sits between our company LAN and an ADSL router. We have been allocated a range of IP addresses....
212.107.213.9 (the adsl modem) 212.107.213.10 (firewall WAN interface) 212.107.213.11 (incoming email comes to this address) 212.107.213.12 (DMZ - not used yet) We run MS Exchange on the LAN server (192.168.175.1) - there is a 'one-to-one NAT' entry in the firewall which lets incoming mail through to the mail server (directs incoming traffic 212.107.213.11 >> 192.168.175.1) I've sucessfully got the Dachstein LEAF Firewall (floppy disk) running and browsing pages across a test network with the external and internal interfaces set the same as the Sonicwall (213.107.212.10 and 192.168.175.9 respectively). I'm struggling to find how I can set a rule which would direct mail arriving at 212.107.213.11 to the mail server at 192.168.175.1. I've searched and read a fair bit, and this page sounds the most promising.....? http://sourceforge.net/docman/display_doc.php?docid=10418&group_id=13751 Can anyone tell me if I'm on the right track? I don't have alot of experience with Linux or firewalls yet - any help would be appreciated. Cheers, MW *********************************************************** ************************************* the exact name of the LEAF distribution and version you are running: dachstein-v1.0.2-1680 ************************************* the exact kernel version you are running Linux firewall 2.2.19-3-LEAF #1 ************************************* the complete, exact output of ip addr show 1: lo: <LOOPBACK,UP> mtu 3924 qdisc noqueue link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 brd 127.255.255.255 scope global lo 2: eth0: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 100 link/ether 00:60:08:5e:90:46 brd ff:ff:ff:ff:ff:ff inet 213.107.212.10/29 brd 213.107.212.15 scope global eth0 3: eth1: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 100 link/ether 00:08:c7:39:af:07 brd ff:ff:ff:ff:ff:ff inet 192.168.175.9/24 brd 192.168.175.255 scope global eth1 ************************************* the complete, exact output of ip route show 213.107.212.8/29 dev eth0 proto kernel scope link src 213.107.212.10 192.168.175.0/24 dev eth1 proto kernel scope link src 192.168.175.9 default via 213.107.212.9 dev eth0 ************************************* the exact wording of any ping failure responses (there are some FAQ entries <http://sourceforge.net/docman/display_doc.php?docid=4099&group_id=13751 > to help you). From the LEAF box, I can ping the WAN and LAN interfaces, and the machines attached to those interfaces. ************************************* The output from ipchains -nvL: Chain input (policy DENY: 0 packets, 0 bytes): pkts bytes target prot opt tosa tosx ifname mark outsize source destination ports 0 0 DENY icmp ----l- 0xFF 0x00 * 0.0.0.0/0 0.0.0.0/0 5 -> * 0 0 DENY icmp ----l- 0xFF 0x00 * 0.0.0.0/0 0.0.0.0/0 13 -> * 0 0 DENY icmp ----l- 0xFF 0x00 * 0.0.0.0/0 0.0.0.0/0 14 -> * 0 0 DENY all ----l- 0xFF 0x00 eth0 0.0.0.0 0.0.0.0/0 n/a 0 0 DENY all ----l- 0xFF 0x00 eth0 255.255.255.255 0.0.0.0/0 n/a 0 0 DENY all ----l- 0xFF 0x00 eth0 127.0.0.0/8 0.0.0.0/0 n/a 0 0 DENY all ----l- 0xFF 0x00 eth0 224.0.0.0/4 0.0.0.0/0 n/a 0 0 DENY all ----l- 0xFF 0x00 eth0 10.0.0.0/8 0.0.0.0/0 n/a 0 0 DENY all ----l- 0xFF 0x00 eth0 172.16.0.0/12 0.0.0.0/0 n/a 0 0 DENY all ----l- 0xFF 0x00 eth0 192.168.0.0/16 0.0.0.0/0 n/a 0 0 DENY all ----l- 0xFF 0x00 eth0 0.0.0.0/8 0.0.0.0/0 n/a 0 0 DENY all ----l- 0xFF 0x00 eth0 128.0.0.0/16 0.0.0.0/0 n/a 0 0 DENY all ----l- 0xFF 0x00 eth0 191.255.0.0/16 0.0.0.0/0 n/a 0 0 DENY all ----l- 0xFF 0x00 eth0 192.0.0.0/24 0.0.0.0/0 n/a 0 0 DENY all ----l- 0xFF 0x00 eth0 223.255.255.0/24 0.0.0.0/0 n/a 0 0 DENY all ----l- 0xFF 0x00 eth0 240.0.0.0/4 0.0.0.0/0 n/a 0 0 DENY all ----l- 0xFF 0x00 eth0 192.168.175.0/24 0.0.0.0/0 n/a 0 0 DENY all ----l- 0xFF 0x00 eth0 213.107.212.10 0.0.0.0/0 n/a 0 0 REJECT all ----l- 0xFF 0x00 eth0 0.0.0.0/0 127.0.0.0/8 n/a 0 0 REJECT all ----l- 0xFF 0x00 eth0 0.0.0.0/0 192.168.175.0/24 n/a 0 0 REJECT tcp ------ 0xFF 0x00 eth0 0.0.0.0/0 0.0.0.0/0 * -> 137 0 0 REJECT tcp ------ 0xFF 0x00 eth0 0.0.0.0/0 0.0.0.0/0 * -> 135 45 3510 REJECT udp ------ 0xFF 0x00 eth0 0.0.0.0/0 0.0.0.0/0 * -> 137 0 0 REJECT udp ------ 0xFF 0x00 eth0 0.0.0.0/0 0.0.0.0/0 * -> 135 0 0 REJECT tcp ------ 0xFF 0x00 eth0 0.0.0.0/0 0.0.0.0/0 * -> 138:139 0 0 REJECT udp ------ 0xFF 0x00 eth0 0.0.0.0/0 0.0.0.0/0 * -> 138 0 0 REJECT udp ------ 0xFF 0x00 eth0 0.0.0.0/0 0.0.0.0/0 137:138 -> * 0 0 REJECT udp ------ 0xFF 0x00 eth0 0.0.0.0/0 0.0.0.0/0 135 -> * 0 0 REJECT tcp ------ 0xFF 0x00 eth0 0.0.0.0/0 0.0.0.0/0 137:139 -> * 0 0 REJECT tcp ------ 0xFF 0x00 eth0 0.0.0.0/0 0.0.0.0/0 135 -> * 0 0 REJECT tcp ------ 0xFF 0x00 eth0 0.0.0.0/0 0.0.0.0/0 * -> 113 47 10692 ACCEPT tcp ------ 0xFF 0x00 eth0 0.0.0.0/0 0.0.0.0/0 * -> 1024:65535 0 0 REJECT udp ----l- 0xFF 0x00 eth0 0.0.0.0/0 0.0.0.0/0 * -> 161:162 0 0 ACCEPT udp ------ 0xFF 0x00 eth0 0.0.0.0/0 0.0.0.0/0 * -> 53 0 0 ACCEPT udp ------ 0xFF 0x00 eth0 0.0.0.0/0 0.0.0.0/0 * -> 68 0 0 DENY udp ------ 0xFF 0x00 eth0 0.0.0.0/0 0.0.0.0/0 * -> 67 0 0 ACCEPT udp ------ 0xFF 0x00 eth0 0.0.0.0/0 0.0.0.0/0 * -> 1024:65535 3 252 ACCEPT icmp ------ 0xFF 0x00 eth0 0.0.0.0/0 0.0.0.0/0 * -> * 0 0 ACCEPT ospf ------ 0xFF 0x00 eth0 0.0.0.0/0 0.0.0.0/0 n/a 0 0 DENY all ----l- 0xFF 0x00 eth0 0.0.0.0/0 0.0.0.0/0 n/a 0 0 REJECT udp ----l- 0xFF 0x00 * 0.0.0.0/0 0.0.0.0/0 * -> 161:162 0 0 REJECT udp ----l- 0xFF 0x00 * 0.0.0.0/0 0.0.0.0/0 161:162 -> * 816 82209 ACCEPT all ------ 0xFF 0x00 * 0.0.0.0/0 0.0.0.0/0 n/a Chain forward (policy DENY: 0 packets, 0 bytes): pkts bytes target prot opt tosa tosx ifname mark outsize source destination ports 0 0 DENY icmp ----l- 0xFF 0x00 * 0.0.0.0/0 0.0.0.0/0 5 -> * 479 44227 MASQ all ------ 0xFF 0x00 eth0 192.168.175.0/24 0.0.0.0/0 n/a 0 0 DENY all ------ 0xFF 0x00 * 0.0.0.0/0 0.0.0.0/0 n/a Chain output (policy DENY: 0 packets, 0 bytes): pkts bytes target prot opt tosa tosx ifname mark outsize source destination ports 759 117K fairq all ------ 0xFF 0x00 * 0.0.0.0/0 0.0.0.0/0 n/a 0 0 DENY all ----l- 0xFF 0x00 eth0 0.0.0.0 0.0.0.0/0 n/a 0 0 DENY all ----l- 0xFF 0x00 eth0 255.255.255.255 0.0.0.0/0 n/a 0 0 DENY all ----l- 0xFF 0x00 eth0 127.0.0.0/8 0.0.0.0/0 n/a 0 0 DENY all ----l- 0xFF 0x00 eth0 224.0.0.0/4 0.0.0.0/0 n/a 0 0 DENY all ----l- 0xFF 0x00 eth0 10.0.0.0/8 0.0.0.0/0 n/a 0 0 DENY all ----l- 0xFF 0x00 eth0 172.16.0.0/12 0.0.0.0/0 n/a 0 0 DENY all ----l- 0xFF 0x00 eth0 192.168.0.0/16 0.0.0.0/0 n/a 0 0 DENY all ----l- 0xFF 0x00 eth0 0.0.0.0/8 0.0.0.0/0 n/a 0 0 DENY all ----l- 0xFF 0x00 eth0 128.0.0.0/16 0.0.0.0/0 n/a 0 0 DENY all ----l- 0xFF 0x00 eth0 191.255.0.0/16 0.0.0.0/0 n/a 0 0 DENY all ----l- 0xFF 0x00 eth0 192.0.0.0/24 0.0.0.0/0 n/a 0 0 DENY all ----l- 0xFF 0x00 eth0 223.255.255.0/24 0.0.0.0/0 n/a 0 0 DENY all ----l- 0xFF 0x00 eth0 240.0.0.0/4 0.0.0.0/0 n/a 0 0 DENY all ------ 0xFF 0x00 eth0 192.168.175.0/24 0.0.0.0/0 n/a 0 0 REJECT tcp ------ 0xFF 0x00 eth0 0.0.0.0/0 0.0.0.0/0 * -> 137 0 0 REJECT tcp ------ 0xFF 0x00 eth0 0.0.0.0/0 0.0.0.0/0 * -> 135 0 0 REJECT udp ------ 0xFF 0x00 eth0 0.0.0.0/0 0.0.0.0/0 * -> 137 0 0 REJECT udp ------ 0xFF 0x00 eth0 0.0.0.0/0 0.0.0.0/0 * -> 135 0 0 REJECT tcp ------ 0xFF 0x00 eth0 0.0.0.0/0 0.0.0.0/0 * -> 138:139 0 0 REJECT udp ------ 0xFF 0x00 eth0 0.0.0.0/0 0.0.0.0/0 * -> 138 0 0 REJECT udp ------ 0xFF 0x00 eth0 0.0.0.0/0 0.0.0.0/0 137:138 -> * 0 0 REJECT udp ------ 0xFF 0x00 eth0 0.0.0.0/0 0.0.0.0/0 135 -> * 0 0 REJECT tcp ------ 0xFF 0x00 eth0 0.0.0.0/0 0.0.0.0/0 137:139 -> * 0 0 REJECT tcp ------ 0xFF 0x00 eth0 0.0.0.0/0 0.0.0.0/0 135 -> * 759 117K ACCEPT all ------ 0xFF 0x00 * 0.0.0.0/0 0.0.0.0/0 n/a Chain fairq (1 references): pkts bytes target prot opt tosa tosx ifname mark outsize source destination ports 0 0 RETURN ospf ------ 0xFF 0x00 * 0x1 0.0.0.0/0 0.0.0.0/0 n/a 0 0 RETURN ospf ------ 0xFF 0x00 * 0x1 0.0.0.0/0 0.0.0.0/0 n/a 0 0 RETURN udp ------ 0xFF 0x00 * 0x1 0.0.0.0/0 0.0.0.0/0 * -> 520 0 0 RETURN udp ------ 0xFF 0x00 * 0x1 0.0.0.0/0 0.0.0.0/0 520 -> * 0 0 RETURN tcp ------ 0xFF 0x00 * 0x1 0.0.0.0/0 0.0.0.0/0 * -> 179 0 0 RETURN tcp ------ 0xFF 0x00 * 0x1 0.0.0.0/0 0.0.0.0/0 179 -> * 0 0 RETURN tcp ------ 0xFF 0x00 * 0x1 0.0.0.0/0 0.0.0.0/0 * -> 53 0 0 RETURN tcp ------ 0xFF 0x00 * 0x1 0.0.0.0/0 0.0.0.0/0 53 -> * 428 31842 RETURN udp ------ 0xFF 0x00 * 0x1 0.0.0.0/0 0.0.0.0/0 * -> 53 0 0 RETURN udp ------ 0xFF 0x00 * 0x1 0.0.0.0/0 0.0.0.0/0 53 -> * 0 0 RETURN tcp ------ 0xFF 0x00 * 0x2 0.0.0.0/0 0.0.0.0/0 * -> 23 0 0 RETURN tcp ------ 0xFF 0x00 * 0x2 0.0.0.0/0 0.0.0.0/0 23 -> * 0 0 RETURN tcp ------ 0xFF 0x00 * 0x2 0.0.0.0/0 0.0.0.0/0 * -> 22 0 0 RETURN tcp ------ 0xFF 0x00 * 0x2 0.0.0.0/0 0.0.0.0/0 22 -> * --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.371 / Virus Database: 206 - Release Date: 6/13/02 ------------------------------------------------------- This sf.net email is sponsored by: OSDN - Tired of that same old cell phone? Get a new here for FREE! https://www.inphonic.com/r.asp?r=sourceforge1&refcode1=vs3390 ------------------------------------------------------------------------ leaf-user mailing list: [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/leaf-user SR FAQ: http://leaf-project.org/pub/doc/docmanager/docid_1891.html
