similar to: [Bug 554] Packet illegaly bypassing SNAT

Displaying 20 results from an estimated 6000 matches similar to: "[Bug 554] Packet illegaly bypassing SNAT"

2007 Mar 15
5
[Bug 554] Packet illegaly bypassing SNAT
https://bugzilla.netfilter.org/bugzilla/show_bug.cgi?id=554 ------- Additional Comments From kaber@trash.net 2007-03-15 02:53 MET ------- Most likely these packets are considered invalid by connection tracking and therefore not handled by NAT. Try this: iptables -t mangle -A POSTROUTING -m state --state INVALID -j DROP -- Configure bugmail:
2007 Mar 14
0
[Bug 554] New: Packet illegaly bypassing SNAT
https://bugzilla.netfilter.org/bugzilla/show_bug.cgi?id=554 Summary: Packet illegaly bypassing SNAT Product: netfilter/iptables Version: linux-2.6.x Platform: All OS/Version: All Status: NEW Severity: major Priority: P2 Component: NAT AssignedTo: laforge@netfilter.org ReportedBy:
2006 May 03
5
SNAT on IPSEC tunnel with kernel 2.6/KAME tools?
Hi, Could not conceive an working set-up for an IPSEC VPN made with racoon/setkey on which I have one address on my side acting as an SNAT router for all traffic from my network to a network segment on the far side. my network --- my gateway ---------------------- remote network 10.0.0.0/24 - 10.0.0.1 (10.253.0.2) -- tunnel - 192.168.0.0/22 All traffic starts on my side, so if I can
2007 Dec 21
1
Regd: Iptables SNAT issue in Cluster Suite Setup
Dear All, I have configured Cluster Suite with 2 servers Server 1 : 192.168.13.110 IP Address Server 2 : 192.168.13.179 IP Address Floating : 192.168.13.83 IP Address (Assumed by currently active server) I want all snmp packets going out through the active server to be stamped with floating IP So i have added a iptables rules as "iptables -t nat -A POSTROUTING -p udp -s
2005 Jan 24
2
Migrate rules from iptables to shorewall - SNAT
Hi all, I''m using Shorewall since one year (1.4, then 2.0) I''m trying to migrate a linux firewall from iptables rules to shorewall. The firewall has three zones - net internet - loc1 lan - loc2 second lan I have a lot of rules like this, to SNAT the ip addresses of some computers on loc1 (192.168.16.0/24) when they connect to loc2 (10.0.0.0/8) iptables -v -t nat -I
2016 Jan 20
3
snat packet going out a bridge
Hi List, I am running into a problem where I have 2 interfaces bridged with and ip address assigned. I have another interface in which traffic has ingress traffic that needs to go out the bridged interface. I am trying unsuccessfully to SNAT the traffic leaving the bridge interface to its assigned address. # brctl show xbrdg0 bridge name bridge id STP enabled interfaces
2002 Nov 20
4
SNAT based on MAC before routing
Hi gurus, I need a way to do SNAT based on source mac before routing. This is because hosts attached to my gateway can have duplicate IP addresses, and I have to distinguish over them. I tried to use the nat tool that comes with iproute2, but this force to make a mapping only address to address, and I wanted to do it by mark (I also use iptables to do that). For example, I tried to
2018 May 03
5
[Bug 1255] New: nftables SNAT is not working
https://bugzilla.netfilter.org/show_bug.cgi?id=1255 Bug ID: 1255 Summary: nftables SNAT is not working Product: nftables Version: unspecified Hardware: All OS: All Status: NEW Severity: critical Priority: P5 Component: kernel Assignee: pablo at netfilter.org
2010 Jan 10
4
SNAT
Hello I will briefly draw the situation Router with one interface eth0 , to local network 10.123.0.0/16 on a local network ADSL modem with IP 10.123.10.11 I want to use 10.123.10.11 as a connection to internet . Because of that I have created default route "ip route add default via 10.123.10.11 dev eth0" I do not want my ADSL modem to do NATing , since it shows to be slow. I have
2004 Aug 02
1
Split Access Routing and SNAT
Hi all, i got the following configuration: * NET1: DSL Line with /28 network, let''s call it 10.1.0.0/28 * NET2: DSL Line with /28 network, let''s call it 10.2.0.0/28 * INTNET: Internal Network with productive servers and workstations, 192.168.1.0/24 Obvisiously the 10er networks are official networks but censored to protect my customer. The routerbox assigns on eth0 all
2004 Sep 30
2
2 DSL link, DNAT & SNAT
Sorry for the long descritpion of the problem, I''d like to know If I misunderstand something or if I meet an intrinsic limit of my setup. 217.58.51.162 HDSL eth1 - SRV_XP: 192.168.254.10 eth0: 192.168.254.1 -----+------------------+------- 81.121.243.250 ADSL eth3 - I want to allow incoming pptp request (port 1723) to be forwarded to srv_xp
2009 Nov 23
1
SNAT question
Hi, I am unable to get my LAN masqueraded using SNAT with CentOS 5.3 and iptables. I have the following setup: eth0: connects to internet with static public IP 1.2.3.1 (obscured here for privacy) eth1: connects to DMZ with static public IP 1.2.3.2 (obscured here for privacy) eth2: connects to LAN with static private IP 192.168.0.1 Traffic to hosts in the DMZ/Internet through eth0/1 work fine.
2006 Jul 15
3
vif/network-bridge and SNAT ?
Has anyone managed to combine bridged network model and SNAT? I have a machine that just ssh''s into other boxes and updates via rsync a copy of their filesystems. I figured I could stage a xen VM for this server with a private IP address and do SNAT and "routing" via the dom0 box, but I get a wierd "Performing cross-bridge DNAT requires IP forwarding to be enabled"
2005 May 21
10
pb with iptables snat script
hi list, oh it''s not really a problem. Each time i fire shorewall, i run a custom iptables script: (for the openvpn machines to have route back from my bridge/fw - $SOURCEIP is the ip of my OpenVPN/Fw/bridge) iptables -A POSTROUTING -t nat -s 10.8.0.0/16 -j SNAT --to-source $SOURCEIP i wish to better integrate it within shorewall, so is there any config files that could achieve the
2005 May 29
1
Routing for multiple uplinks and SNAT to 2 source IPs
Hi, I configured a router box to use 2 providers, as described in the HOWTO. (Apendix 1) I want to use both links to reach a single smtp server. As I read in the kptd and in some old messages of this list, doing a SNAT in the postrouting chain comes _after_ the routing desision. So I guess the following lines I''m trying to use are wrong. (See Apendix 1) What can I do to have multiple
2004 Apr 02
1
Complex Routing/Firewalling/Bridging question
I''m being cast headlong into unfamiliar waters here, and being desperate for some air, thought I''d come here for some help. :) Anyway, my employer is going through some whiplash-inducing growth spurts, and as a result, the simple "Internet T-1 -> Linux Firewall/NAT -> LAN" setup just isn''t going to cut it anymore. First, we''re bringing in 2
2002 Jun 05
4
Docs Issue - IP Masq vs. SNAT
More than one of our docs issues revolve around some confusion between "IP masquerading" and "SNAT" -- a confusion I might share, or if contagious, I may be catching. <g> I think of SNAT more or less as a special case of IP masquerading, applicable when, for example, the external interface has multiple IP''s and you choose to _explicitly_ set the address through
2003 Feb 04
1
Totally SNAT confused :)
Hi ! I have setup a complete shorewall now with DMZ, and Private zones and masq, rules, port-forwarding etc. worx like expected. BUT I have a wish to use a couple of more public IP''s and relate those to inernal servers on the DMZ zone and i am now so confused about it. I have searched this archive for SNAT port allow Setup: 3 public adresses on the WAN nic. lets call them 80.80.80.80 -
2005 Jun 24
1
SNAT multiple IP to single internal IP and limiting access based on external IP
Hello all, I have shorewall setup with 3 SNAT entries for external IP address''s to a single IP internal address. I am wondering how to limit access based on the source IP address. ex. EXT IP 1 access only to port 25 EXT IP 2 access only to port 443 EXT IP 3 access only to port 80 I have the SNAT setup correctly and I have 3 accept line in the rules file (25,80,443) but I can hit
2003 Feb 23
1
RTSP problems (and SNAT questions)
I am having problems making RTSP connections to a Windows Streaming Media Server (ie "connecting to media...." but WMP never connects). There are no error messages in /var/log/messages. It was suggested to me that SNAT might perform better than MASQ in this respect. I edited my shorewall/masq file as such: eth0 eth1 12.34.56.78 or should it be? eth0 10.0.0.0/24