similar to: Nat as internal firewall

Displaying 20 results from an estimated 10000 matches similar to: "Nat as internal firewall"

2004 Dec 02
11
another network to add
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
2005 Jun 06
23
Multi-ISP in 2.4.0
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,
2004 Nov 19
14
FAQ 32
What changes would I need to make if there is a 4th interface that is going to a DMZ Thanks Gene
2005 Mar 02
12
Problem with outgoing Masquerade
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 ==
2005 Jul 04
4
setting gateway in interfaces file
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
2004 Dec 06
1
MASQ
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
2006 Jan 17
12
Multiple ISPs: How to force $FW traffic to a specific ISP (reprise)
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
2006 Mar 25
2
Multiple uplink problems
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
2005 Mar 01
3
Problem with multiple ISP''s
I have a setup with two Internet providers. One circuit (net0 == eth1) is used primarily for employees and tunnels to other sites. The other (net1 == eth2) is for the production machines that customers access. Everythung works in teh sense that packets get to where they are sent (mostly) but I recently I had a sniffer on the system and noticed a problem I cannot solve. traffic coming in
2004 Dec 03
1
Re: Shorewall-users Digest, Vol 25, Issue 9
> 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
2005 Feb 25
6
nat problem
Hi All, I''m using the Mandrake Linux MultiNetwork Firewall which is a web based interface to the shorewall firewall. I have an internal ip address of 172.25.38.1 which I am try to nat to a public address so that the client pc can ftp to the internet I have add the following in the nat file: 168.10.10.1 eth3 172.25.38.1 No No And this to rules: ACCEPT lan:172.25.38.1 wan tcp
2005 Sep 29
20
maclist problem on a firewall/bridge/router system with masquerading
Hy, sorry for my poor english i think i''m having a very unusual problem and very dificult to track, but i''ll try to explain it as best as i can. here is my scenario: a firewall/bridge composed of 3 ethernet devices and 1 virtual one. my bridge (br0 ) is composed of eth0, eth1 and tap0 br0:eth0 is my connection to my router (200.244.92.1) br0:eth1 is my connection to my
2005 Jul 05
14
issues in tcrules
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...
2006 Mar 24
10
Multi-ISP with one Dynamic IP
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 --
2008 Jan 08
8
Shorewall and LVS-NAT (via fwmark) nat'd machines can't access the outside world directly
Hi guys, I''m not sure where to post for help on this one, shorewall or lvs, I''ll start with shorewall (only cause Tom is a gun at this stuff, and is polite enough to tell me to bugger off to the LVS list if I''m posting in the wrong one ;) I have a single box that is my router/firewall/LVS. Internet -- eth0 - router/firewall - eth1 --- internal lan | eth2
2005 May 11
2
Multiple Internet links - routing traffic to the correct one.
Hi all, I have the following configuration: _______ +------------+ / diginet link | | | +-------------+ Provider 1 +------- __ | | | / ___/ \_
2007 Jun 11
24
multiple routing tables for internal router programs
Maybe a strange request, I''ll try to explain this as clearer as I can (forgive my bad english, please :-) ). I''m setting a linux box as a router. My router uses multiple routing tables, so I can address the traffic from specific ip addresses of my lan to distinct ISPs providers (specifying a different default gateway fo r each table), marking packets with iptables
2006 Mar 02
4
Dual ISP routing and NAT problem
Hello newsgroup, I hope somebody with more routing experience then me can help me with the problem I have. The setup is as described below. A dual internet provider routing, multiple local area networks, and a dmz network with one public and one private ip range. I followed the instructions at lartc.org, and so far everything is working. The default route is via
2003 Jul 09
2
router in a subnet again :)
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
2012 Dec 29
10
How could I open Port 1701 for VPN l2tp/ipsec
Hello Mailinglist, please excuse my bad english - but I am not a native speaker. My Network looks like this: Internet --- dyn. IP --- Firewall (shorewall) --- LAN (192.168.X.X) No I try to connect my iphone (from mobile Internet G3) over VPN (l2tp/ipsec) with the firewall. But I canĀ“t open the necessary Port 1701. /var/log/syslog ... Dec 30 00:24:29 router kernel: [226128.293757]