similar to: iproute2/nano-howto: dual external routing, a "virtual subnet"

Displaying 20 results from an estimated 6000 matches similar to: "iproute2/nano-howto: dual external routing, a "virtual subnet""

2007 Feb 22
3
Network problem: packets are lost in domU
Hello, I am having big problems with Xen virtual network interfaces. First I tried typical bridge support, no luck. The packets sent from dom0 to domU seemed to disappear somewhere. Then, to debug the problem I have set up a simple point-to-point link and still have the same problem. I am using Xen 3.0.4-1 and Linux 2.6.16.x in both dom0 and domU. I have tried kernel 2.6.16.35 and 2.6.16.41. I
2002 Nov 17
2
Proxy-ARP
I''m working with LEAF boxes as gateway machines. I''m trying to implement Proxy-ARP to build a bandwidth manager for my network. I''ve gone as per the lartc howto to implement a transparent bridge in an existing network and plan to put in my tc script after this. I''m configuring the box as a standalone one before plugging it into the network. I''m getting
2003 Dec 13
0
Fwd: Re: [Shorewall-newbies] Shorewall 1.4.8 Debian setup problems
Thanks a lot , Everythings is working now. Quoting Alex Martin <alex@rettc.com>: > > > At this point point 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 scope host lo > > 2: eth0: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 1000
2004 Dec 11
5
Problem report -- shorewall 1.4
Hello list, I wish to report a problem with openvpn tunnels. Synopsis: Despite adding policies to the shorewall policy file, I have to add extra rules to allow the UDP port 5000 packets to get through. I have used no particular setup guide. I believe this problem goes away with shorewall 2.0.9, as I have implemented openvpn with that version on a different machine, and I see no UDP:5000 packet
2003 Feb 03
1
Problem with an alias interface
Hi, this is my first message to the list and I want to thank the the autor for developing Shorewall. And now the problem. I''m using version 1.3.13 and I have eth0 (IP a.b.c.d/24) as a public interface. I have an alias on eth0:0 (address a.b.c.e/24) and my dns servce listens on this IP (in this moment the dns is stopped). This is my policy file: #SOURCE... fw all
2020 Oct 28
0
Unable to get dummy interfaces to persist across reboots in CentOS 8
No. Network Manager is always disabled on our builds since at least Cent5 days. The network stack has always been able to be managed properly without relying on Network Manager. Is that now an absolute requirement? It never has been prior. On Mon, Oct 26, 2020 at 6:26 PM Strahil Nikolov via CentOS <centos at centos.org> wrote: > > Have you tried to use NetworkManager ? > After
2003 Feb 22
10
Spaces not allowed in comma separated lists?
----------------------------------------------------------------------------- Shorewall 1.2.12 # uname -a Linux yoreach 2.4.18 #1 Sun Apr 21 12:50:34 CEST 2002 i686 unknown # 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: dummy0: <BROADCAST,NOARP> mtu 1500
2004 Oct 29
8
No entries in the syslog, even though the LOG chains show counts
I have obviously done something on my system to cause it to no longer show Shorewall log entries in the syslogs, but for the life of me I can''t figure out what. Let me first give you some details about my config which will hopefully show why I think logging should be working, and perhaps you can tell me why it''s not. I am using version 2.0.9 from the debian sarge package
2020 Oct 28
1
Unable to get dummy interfaces to persist across reboots in CentOS 8
Requirement is a very strong word , but you should consider using it and here is a short demo why: - By default, RHEL uses NetworkManager to configure and manage network connections, and the /usr/sbin/ifup and /usr/sbin/ifdown scripts use NetworkManager to process ifcfg files in the /etc/sysconfig/network-scripts/ directory. [root at system ~]# ls -l /usr/sbin/ifup lrwxrwxrwx. 1 root root 22 21
2005 Mar 23
9
multiple vpn connections out via shorewall
Hi All, Just joined the list to try and solve a problem. To show that I''ve read the rules I''ll start with the requested info os linux kernel-2.4.27 with latest netfilter pom for gre and pptp conntrack etc iptables is 1.3.0 - downloaded and compiled with the pom stuff and the 2.4.27 kernel shorewall version shorewall-2.2.1-2 from rpm ip addr show [root@squid3 root]# ip addr
2008 May 04
2
network-bridge called three times
Hello All, I'm trying to figure out why xen-utils-common 3.2 doesn't suport bridging on multiple interfaces. I've been digging around /etc/xen/scripts/network-bridges. And modified it so that during boot, when executed the script writes into /tmp/netbr file, but I commented out code that actually creates bridges. I discovered that this script is called three times during boot, I
2005 Jun 04
2
2-3 uplinks, nat and failover...is it possible?
Hello, I am trying something crazy here. I have gone through the old archives, lartc.org and lot''s of documentation, but still something is wrong. Here is the situation; The server is Fedora core 2 running kernel 2.6.5 I have 2 uplinks to two different ISP''s. (It will be 3-4 in the future). These ISP''s should serve the bandwith to local clients with multiple subnets.
2005 Jun 01
0
ip aliasing and loadbalancing with iproute2
Hi, We have two internet connections and I would like to loadbalance between the two using advanced routing. The gateway machine to my lan has two interfaces, one connected to lan(eth0) and other to wan (eth1). The wan side interface is connected to a switch which is terminated with two internet connections from two ISPs. I have added the routes as follows, ip route add default scope
2004 Feb 26
4
Help! Martians invading through IPSec. :-)
[ sorry for cross-posting this to newbies and users, but I''m a bit desperate to get this resolved ] This is strange... I had this working before without any problems, and recently we started to have some odd issues. I can''t be sure exactly what has changed as I''m unfortunately not the only person with access to the server. {sigh} The problem is that I pretty much
2020 Oct 27
4
Unable to get dummy interfaces to persist across reboots in CentOS 8
Have you tried to use NetworkManager ? After all ,anything network related should be done by it. [root at system ~]# nmcli connection add con-name dummy0 ifname dummy0 type dummy ? Connection 'dummy0' (9fdd74fa-c143-4991-9bac-0e542704ac89) successfully added. [root at system ~]# reboot Shared connection to glustera closed. [root at system ~]# uptime 03:23:44 up 0 min, ?1 user, ?load
2004 Nov 03
2
PPPoE + Masquedate + Shorewall
Hi, I have been a shorewall user for a long time now, and it has been working flawlessly. I have now changed ISP and my new DSL connection is PPPoE. My setup is as follows: internet <--------> 3com812 Officeconnect (bridge mode) <----> eth0 <-------> linux box <----> eth1, eth2, eth3, eth4 <---> other internal networks Things are working fine, but the link is
2004 Feb 20
1
{Spam} shorewall-vpn with cisco router(vlan) problem
Hi everyone. I am so baffled by the following problem: Office 1 is using ADSL and it is building a VPN tunnel with IPSEC to Office 2. Both ends are using shorewall/freeswan firewalls. Diagram: Office1 fw --- VPN TUNNEL --- Office2 fw --- cisco router ----- VLANS | DMZ Office 1 has the following interfaces: 2: eth0:
2005 Jun 12
8
proxy_arp: Permission denied
Dear All, I have a problem to start Shorewall on a Debian 1.3 Linux box. Here is some info: Output of ''/sbin/shorewall trace start 2> /tmp/trace'' is in the attachment. Shorewall version: 2.2.3 Output of ''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 2: bond0:
2006 Feb 22
0
iproute2 dump nat
Sorry for disturbung you, but I am not aware about a specialized forum/ml for iproute2. I try to use iproute2''s dumb nat, I tried with kernels 2.4.27, .32 and 2.6.8. While DNAT is working fine, I am not able to do any SNAT: 2: eth0: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 1000 link/ether 00:04:e2:10:88:5f brd ff:ff:ff:ff:ff:ff inet 10.10.20.10/24 brd
2004 Sep 02
3
Traffic shapping Bug ?
hello , i''m currently trying to set-up Traffic Shapping with Shorewall and I have strong feelings that I found a bug. I may be mistaken, but I tried everything and can''t get it to work. I''ve turned ON TC_ENABLED=Yes and CLEAR_TC=Yes when i start shorewall ( shorewall start ), i get this message : Setting up Traffic Control Rules... TC Rule "2 eth1 0.0.0.0/0 tcp