similar to: Netfilter/Iptables does not NAT all packets?

https://bugzilla.netfilter.org/bugzilla/show_bug.cgi?id=498 Summary: RTP packets are not hitting NAT table Product: netfilter/iptables Version: linux-2.6.x Platform: All OS/Version: Fedora Status: NEW Severity: major Priority: P2 Component: NAT AssignedTo: laforge@netfilter.org ReportedBy:

Is there a way to add a rule to the nat table (CentOS 5.7) that would alter the port number of tcp packets destined for the server itself? I have ip_forwarding enabled, but the packets don't seem to hit the prerouting chain. I have the following redirect rule in the prerouting table. I also tried DNAT, but if the packets don't hit PREROUTING, it won't work either. iptables -t nat

http://bugzilla.netfilter.org/show_bug.cgi?id=747 Summary: IPtables marked packets not being inpsected in NAT table. Product: iptables Version: CVS (please indicate timestamp) Platform: All OS/Version: All Status: NEW Severity: major Priority: P3 Component: iptables AssignedTo:

Hi all, I have a network like this : Provider 1 Provider 2 \ / \ / \ / eth1 \ / eth2 ------------- | | | | | | | | | | | eth0 | ------------- | | | | 2 networks : -

Hi, Following the directions for setting up bridged networking in the red hat virtualization guide and libvirt wiki, I set the following kernel parameters to 0 on a RHEL 5.5 server. net.bridge.bridge-nf-call-ip6tables net.bridge.bridge-nf-call-iptables net.bridge.bridge-nf-call-arptables Unfortunately, doing this broke the port forwarding I'd set up for VMs on my NAT networks, e.g.

I know that I have asked this before of the list. However we just changed ISP and ip's and I'm having this issue again. I have a linux firewall using iptables with the following config eth0 = WAN 1 eth1 = LAN 1 eth2 = WAN 2 I'm trying to forward all traffic that makes a request from eth2 to an internal IP on eth1. These are the folloing rules that I have set up. iptables -t nat -A

Hi all, I have 2 ISPs on a Linux router and a local network with one Linux server and many windows. The local network is masqueraded. I want to give access to port 25 and 80 of my server from any incoming request (i.e. from my 2 ISP). I have made a DNAT translation, witch work but the outgoing answers are not routed correctly. Of course, the de-SNAT process is done before the routing process. So

https://bugzilla.netfilter.org/show_bug.cgi?id=1117 Bug ID: 1117 Summary: Table ipv4-nat prerouting dnat doesn't accept dest IP:PORT Product: nftables Version: unspecified Hardware: x86_64 OS: All Status: NEW Severity: enhancement Priority: P5 Component: nft

Hi, I have an DNAT ISSUE with PREROUTING. This is my setup. I have 2 firewalls running iptables. Pls asume 1.2.3.4/29 is the internet interace of FIRST firewall. 2.3.4.5/29 is the internet interface of SECOND firewall. it has DMZ zone. in that DMZ zone, mail server runnig @ 192.168.100.3 Now I want to DNAT port 25 of FISRT firewall (i.e - its ip address - 1.2.3.4/29) to the internet ip

https://bugzilla.netfilter.org/show_bug.cgi?id=1408 Bug ID: 1408 Summary: The Check option of iptables does not work as expected Product: nftables Version: unspecified Hardware: arm OS: Ubuntu Status: NEW Severity: minor Priority: P5 Component: iptables over nftable Assignee:

Have you tried NAT=force_rport ? Ashwin -----Original Message----- From: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Luca Bertoncello Sent: 07 June 2015 11:44 To: Asterisk Users Subject: [asterisk-users] Curious problem with NAT Hi list! Since the internal calls work as expected and I can register my Asterisk on an external

https://bugzilla.netfilter.org/show_bug.cgi?id=887 Summary: iptables.xslt wrong "match" -m handling Product: iptables Version: 1.4.x Platform: All OS/Version: Debian GNU/Linux Status: NEW Severity: major Priority: P5 Component: unknown AssignedTo: netfilter-buglog at lists.netfilter.org

Hi list! Since the internal calls work as expected and I can register my Asterisk on an external provider, I'd like to add a new feature and allow my mobile phone to connect to my Asterisk and manage calls. Well, first of all, my Asterisk is NOT direct on Internet available, but behind a NAT. So I configured my sip.conf: localnet=192.168.200.0/24 externhost=myhost.noip.com externrefresh=180

Hi all, I''m trying to marking packets with iptables and use tc filter to catch this packets. I configure my device: tc qdisc del root dev eth0 tc qdisc add dev eth0 root handle 1: htb default 10 tc class add dev eth0 parent 1: classid 1:1 htb rate 3000kbit ceil 6000kbit burst 15k tc class add dev eth0 parent 1:1 classid 1:10 htb rate 2000kbit ceil 4000kbit burst 15k tc qdisc add dev eth0

I have a server whit 2 interfaces of network, where eth0 is the interfaces connetc to internet and eth1 to the internal network. This server hace a Squid only, but i setting the iptables for protection to the server. Iptables run from script and in this script i setting the redirection for the other server in my internal network to port 80 and 443. I follow the diferent how to and many manual, but

Torsten, I suffered a similar problem and was wondering if you found a better solution to the problem of dnatting on a transparent bridge. My setup: INTERNET <-> ROUTER <-> (linux)BRIDGE <-> INTERNAL NETWORK Solution: setup a bridge with ip x.x.x.51 and alias another ip to the bridge x.x.x.50 ( using a /16 network at home ) Now get the router to send all incomming traffic

Hello there, I''ve got a problem regarding my XEN network setup. First of all, I''ll just tell you what doesn''t work: the access to a forwarded (natted) port (e.g. port 80 http) of a dom (no matter if dom0 or domU) to the servers external ip address (from "inside") does not work (connection refused). Here''s the layout of my xen virtual network:

Some day ago, a friend post one problem for mi. whist this texts: I have a server whit 2 interfaces of network, where eth0 is the interfaces connetc to internet and eth1 to the internal network. This server hace a Squid only, but i setting the iptables for protection to the server. Iptables run from script and in this script i setting the redirection for the other server in my internal network to

Thanks for the reply! output: net.ipv4.ip_forward = 1 What do you mean "The out:any and" Anywhere else I can look as to why the connection isn't going? Do I need some kind of listener at that port on the host? I'm not even seeing the packet count on the prerouting chain increase when the connection attempts are made. On Thu, Aug 30, 2018 at 8:58 AM Martin Kletzander

On Wed, Aug 29, 2018 at 06:31:41PM -0400, Rhys Ferris wrote: >Hello all, > >I’m currently trying to figure out how to forward ports to guests that are on a NAT Network. I have followed the directions on https://wiki.libvirt.org/page/Networking under the “Forwarding Incoming Connections” Section and get connection refused when attempting to connect. > >System: Ubuntu Server 18.04.1