similar to: Linux box as network gateway

Hi wondering if anyone can help. I have two NICs on a debian sarge based system and current running as a bridge (br0) which consists of eth0 and eth1. Is it possible to add a virtual interface to the eth1 so I can also do NAT on the box as well? I have tried many times and keep coming up with errors. Kind Regards William Bohannan

Hi I have been using Shorewall for a while now and find it very useful and easy to configure, I am learning iptables and having trouble getting the bridge to successfully work with squid, although I get it working with Shorewall straight away? Does anyone know the rules to successfully use squid with a transparent bridge? Internet – router - (bridge eth0 – eth1) – local lan auto lo iface lo

Hello everyone, I am running multiple nodes each having multiple LXC containers. On those nodes I am using Tinc to share the subnet 10.20.0.0. The LXC containers may migrate between nodes and should keep the same configuration. On all nodes traffic from the external interfaces (connected to the internet) is forwarded to the bridge interfaces and masqueraded. The LXC containers are using 10.20.0.1

Dear Centos-Virt: This is actually a second request for help on the same issue. I finally got to try what several months ago was replayed to me and no joy was to be had. I am afraid the original thread got stale and also had extra, unnecessary data in it. Guest=XP Pro, SP2 Host=CentOS5; # uname -r; 2.6.18-8.1.15.el5 VirtualBox-1.5.0_24069_rhel5-2.i586.rpm

I'm currently running Openvpn on a multi-homed linux server. The bridge device br0 comprises the tap0 virtual device and the physical eth0 device. Eth0 is wired to the local LAN. Remote clients dial into the server's external interface eth1's udp port 1194. This works but when the number of clients increases (over 12), we see lots of dropped packets and lost connections. We look at

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Gao feng @ 12/12/2013 10:18 PM: > I saw there are two bridge br0 and virbr0 in your host. which > bridge the libvirt uses? what's result of #virsh net-list ? well i don't quite understand bridges and their function, i'm kinda just following directions. br0 replaced eth0 though in my interfaces file according to this guide[1] i

I'm trying to bridge a wired network and a wireless network, but I'm having some trouble. No traffic seems to be passing through the bridge. When I issue a "showmacs" command to brctl, I am able to see MAC addresses from both networks. I am also able to ping both networks from the bridge machine. When I issue a "showstp" command to brctl, the wireless access

I''m converting my network from a "one interface per segment" to a "single connection with vlans", well, some hardware I have requires using different vlan IDs. suffice it to say I need bridges to connect a few different vlans that should all be one but can''t be because of firmware constraints. so my first step is to get shorewall to know about bridges.

Hello Tinc list! I'm trying to set up a Tinc VPN between two KVM host machines so that a VM on one host can communicate with a VM on the other host. While I do have a good bit of experience with virtualization, I'm not a particularly savvy network guy, so this is proving to be a pretty big challenge. Requirements: * ALL VM network traffic must be secure. * VMs on one host must be

Hello to everybody, Sorry if my english isn?t very good. I need pass 802.1q through a VPN between two offices. I have mounted a WRT54GL, with OpenWRT firmware, conected to a switch trunk port in both offices. In the switch of the first office I have created five tagged VLANs and I need pass these VLAN to the second offices where it has created it too. Can I do this with Tinc in HUB/Switch

/-----------------------\ | | |eth0 |eth0 |-------| |-------| | |eth1 eth1 | | -------- A |____ _______| B |----- | | \ / | | --------| | | --------| | | | |

Santiago, I appreciate your offer. I'm not really a kernel hacker, however I do know C and I would be willing to try if you point me in the right direction. Here is my first attempt using Debian running on an UltraSPARC: debian{root}:/root<512>strace -f -F -v brctl addbr br0 execve("/usr/sbin/brctl", ["brctl", "addbr", "br0"], [/* 16 vars */]) =

I have a Debian 8 64-bit machine set up as a server and apt-got the tinc package. I configured tinc as a bridge and everything seems normal except that the tunnel does not forward multicast traffic. I used tcpdump to examine the br0, eth0 and tap interfaces. I could see multicast packets on both br0 and eth0, but there is no such packet present on the tap interface. I don't quite know why

Hi all, I use tinc since 2 years between my MPLS sites in router mode, works like a charm. Today i am trying to make an ethernet bridge beetween 2 sites for video conference needs, the raison is that 1 side is behind nat, and i dont have access on the gate, other side is on public range. Because off H323 that doesn't handle unconfigured NAT, i would like to give a public IP to the video

re can somebody tell me what am I doing wrong (at this late night hour), because vlan are not getting bridged at all. ifconfig eth0 0.0.0.0 up ifconfig eth1 0.0.0.0 up brctl addbr br0 brctl addif br0 eth0 brctl addif br0 eth1 ifconfig br0 up vconfig add br0 X vconfig add br0 Y X = vlan-ID (example: 222) Y = vlan ID (example: 223) # brctl show bridge name bridge

Hello, I am experiencing system hangs when running NFSv4 over a tinc VPN. I don't know if the problem is with NFS or tinc and would appreciate any suggestions on how to narrow down the culprit. Unfortunately I cannot simply run NFS directly over TCP -- the participating systems are connected only over an open network. The configuration is as follows: I have a master server

I''m running a ubuntu 9.04 64 bit dom0 with kernel 2.6.29.6 and xen 3.4.0. My eth0 is bridged to br0 and to my guest VMs. The dom0 is running a dhcp server on br0 which is able to provide leases to physical machines on eth0, and also to a windows xp domU which is bridged to br0. However my open solaris 2009.6 domU is unable to obtain a dhcp lease. On the opensolaris side I can see this:

Hi, I am trying to set up a VPN that allows mobile users to access multcast information from an information vendor. Hence Tinc is configured as a switch. Internet --[ router1 ]------[eth0 VPN eth1]--------------[ router2 ]--------- mobile users VPN server is running Ubuntu 10.04 and is also configured as a dhcp server that hands out IP address to connecting mobile users. A bridge (br0) is

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Hello, Presently I am running CentOS release 5.5 (Final). I am looking to setup bridging as I would like to setup some KVM virtual hosts on my system as a test lab. I am following the the instruction at this site > http://tldp.org/HOWTO/BRIDGE-STP-HOWTO/index.html but I cannot figure out where I am going wrong and would be thankful if someone could point me in the right direction. Here