similar to: nat problem

I have a debian woody machine acting as a firewall for a small network. I am trying to do a simple DNAT to port 80 on the protected webserver and masquerade all traffic from the protect subnet outbound. After having read the FAQ and various posts regarding problems with DNAT I''m afraid I''m no closer to a solution. Based on the output from "shorewall show nat" I

Hi Tom (and others) encase you don''t know my network already ;) here''s a quick run down eth0 lan 192.168.1.1/255.255.255.0 eth1 wan1 172.30.7.4/255.255.240.0 eth2 wan2 202.37.230.93/255.255.255.192 eth3 wan3 203.96.213.73/255.255.254.0 I''ve got routes and rules for all the above interfaces :) I want to add another one, however I fear this might cause some issues I have

Hi, I followed the instructions in the section "Squid (transparent) Running on the Firewall" on http://www.shorewall.net/Shorewall_Squid_Usage.html to setup Squid transparently on a Linux gateway. My net is as follows: loc subnet --- fw Linux Gateway --- ADSL router 192.168.1.0/24 192.168.1.92 (eth1) WAN.WAN.WAN.2 (gw = WAN.WAN.WAN.WAN (eth0) 192.168.1.92) (gw =

Hello Shorewall list, I''m a happy Shorewall user since a few years now and everything works fine for me except one thing that I try to implement since a week, the multi-isp. I''ve downloaded the 2.4.0 Stable release yesterday and tried the RC2 since a week. My config is a Debian running a kernel 2.4.27 home made with the CONNMARK.diff patch applied I''m using 2 ISP,

What changes would I need to make if there is a 4th interface that is going to a DMZ Thanks Gene

I have allowed ALL of the local users to ping the internet but they currently get the following error and cannot access the internet ! I know it is something I have done wrong (I think it is a routing problem but just cannot find out what) The error is:- Reply from 212.219.13.74: destination host unreachable. My eth1 is 10.0.0.1 and the users can ping that OK My eth0 is 212.219.13.74 (connected

Dear All, Linux Kernel 2.4.20-8 Running Shorewall 2.2.0 ip addr show 1: lo: <LOOPBACK,UP> mtu 16436 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 host lo 2: eth0: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 100 link/ether 00:48:54:53:82:45 brd ff:ff:ff:ff:ff:ff inet 62.68.254.178/28 brd

Hi all! I posted earlier about the proxy arp configuration = http://shorewall.sourceforge.net/shorewall_setup_guide.htm#NonRouted, = and was probably not sufficiently knowledgeable on the subject. I''ve = gone through a bunch of documents on proxy arp, subnetting with proxy = arp and the documentation at shorewall, and have come up with a setup = that would be perfect for the job at hand

I tried to the new GATEWAY option in /etc/shorewal/interfaces file but it didnt work. My network setting consists of 2 ISPs line and i would like to have eth0 to connect to for example, 192.168.15.254 while eth1 connected to 192.168.33.254. I restarted shorewall and nothing is wrong. However, the traffic still goes to the default gateway as shown in "route -n" command. For example, i

I''m having another little problem with my new firewall. I want outgoing port 25 from my mail server to appear on the address 65.223.121.227 so I created the file masq: eth2 192.168.124.18 65.223.121.227 tcp 25 eth1 eth5 eth1 eth3 eth1 eth4 eth1 == net0 == 209.189.103.196/27 eth2 == net1 == 65.223.121.237/28 eth3 == dmz0 eth4 == dmz1 eth5 == loc ==

Hi! I have reprise try to resolve this problem, suspended from 17 dec 2005 I have try to apply the suggest of Jerry (see above). The problem still exist. See attach shorewall config, dump and tcpdump when I check to exit whit SSH from firewall... In the masq file is reported the last my attempt in order to resolve my problem, however I have test also the example reported in MultiISP.html, but

I have a strange situation. I have a shorewall firewall with 4 interfaces. This firewall is an internal lab firewall with all 4 networks being private. The configuration is as follows: Eth0: 192.168.10.187 - This is the main lab network Eth1: 10.10.10.1 Eth2: 172.26.4.1 Eth3: 192.168.1.1 I would like to be able to put a host behind this firewall with interfaces on all 3

I''ve installed Shorewall 3.0.5 on a Debian Sarge box, and I''m attempting to route internet traffic through a couple of ISPs, and I''ve come up against some problems. The first is that one of my links is a pppoe connection to a wireless modem, and I can''t configure it to have a static IP address... therefore I can''t see how I can set up the two

Hi, after migrating to shorewall firewall from my own iptables rule set (to utilise freeswan vpn tunnels) I have successfully configured a 3 interface firewall with net2net vpn tunnels, with the help of the shorewall documentation. However I cannot seem to configure my final step which is to masq another subnet attached to my LAN (LANB, via Cisco 1603 router) to get internet access via the

I have added a 4th NIC to my setup, and want to set up wireless. I have stared at the configuration Tom has for the last week, and my eyes are crossing. eth0 "net" goes to my internet connected firewall with a 192.168 address eth1 "loc" goes to my switch connected to local switch also 192.168.x eth2 "work" goes to my office with a 172. address eth3 Trying to

Hi! This is another thread of "setting gateway in interfaces file" and while i dont want to create any confusion here, i have decided to open a new thread.(which mean Diamond King no longer a subscriber to shorewall-users) Actually, i turned out not to be the MARK issues. Something is missing and i got this error instead :- Setting up Accounting... Creating Interface Chains...

Is it possible to somehow build this rule, where net could be any IP on the net? /etc/shorewall/masq #INTERFACE SUBNET ADDRESS PROTO PORT(S) eth3:10.10.10.7 net 10.10.10.1 Thanks, David

Hi everyone! I''m having time out problems when using a DNAT rule. Rule: DNAT:info cmtc loc:192.168.0.158 tcp 8011 Log: Mar 17 17:50:17 gw kernel: [1583997.524924] Shorewall:cmtc_dnat:DNAT:IN=eth3 OUT= SRC=10.1.0.2 DST=10.0.0.2 LEN=60 TOS=0x10 PREC=0x00 TTL=62 ID=4279 DF PROTO=TCP SPT=32791 DPT=8011 WINDOW=5840 RES=0x00 SYN URGP=0 Telnet: root@emudar:~# telnet

> Message: 2 > Date: Fri, 03 Dec 2004 10:10:35 +1300 > From: Paul <lists@loudas.com> > Subject: [Shorewall-users] another network to add > To: Shorewall List <shorewall-users@lists.shorewall.net> > Message-ID: <41AF84CB.5080304@loudas.com> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > Hi Tom (and others) > encase you

I have two feeds, one with a static IP and one with a dynamic IP. How can I configure a Multi-ISP setup with the dynamic IP, or can I? I don''t think the gateway will change, just the interface IP. -- Chris Mason NetConcepts (264) 497-5670 Fax: (264) 497-8463 Int: (305) 704-7249 Fax: (815)301-9759 UK 44.207.183.0271 Cell: 264-235-5670 Yahoo IM: netconcepts_anguilla@yahoo.com --