similar to: Mulitple VLANs containing the same ip subnet NATed on same box

Here are some notes I have about Linux bridging. I''ll try to separate what I know I know from what I think I know. Let''s say I want to bridge eth0, eth1, and eth2 together, all with an IP Address of, say, 1.2.3.2. This is how to do it: echo "Setting up br0 to bridge eth0 with eth1 and eth2" /usr/sbin/brctl addbr br0 /usr/sbin/brctl addif br0 eth0

We have about 300 users distributed on different vlans using private ip network spaces, and sharing one single public IP when going out to the Internet. Our samba (3.0.24) server has a pulbic IP and is running as a primary domain controller. All clients receive Sambas's public IP as their WINS server. I am able to join the domain but samba stops responding sporadically. Looking at the

Not normally a question for this group, but you guys are very bridge/router/firewall savvy, so I thought I''d toss it here. I have a bridge. On one side of the bridge is that fancy thing called the Internet. On the other side is my LAN. The bridge is the obvious demarcation line and a good place to put a firewall. Now, I have all my iptables stuff planned out, EXCEPT for nat. The

Hi, I'm using Vlans in my network as a way of preventing pier to pier communication - I only want nodes in the network to talk to the gateway (a linux box). I have successfully set up lots of sub interfaces using the vconfig too, one for each vlan. What I would like to be able to do is remove the ip address from each of these subinterfaces eth0.x and bridge them to eth0. I have successfully

OK, strange request but I want to bridge three vlans under linux 2.4. Bridging works fine with two vlans, but is failing to route when I add the third vlan. Situation is clearly to have Lan, internet and DMZ vlans. The reason they are vlans is that I am using a Linksys WRT54GS and hence you effectively have a 5 port hub on the back which can be segregated into flexible vlan groups. I

Hello, Is it possible with a linux Bow to route différents VLANs, like a router cisco can does ? Thank for your answers Laurent Foucher _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/

Does anyone have VLAN tagging working from within a guest on vmware-server? I'm running a centos 4.5 guest on a centos 5 host with vmware server 1.04and I've tried creating vlans using both the /etc/sysconfig/network-scripts method and just doing it from the cli via vconfig. Either way appears to work, the OS creates the vlans, but I think vmware's network adapter must be eating the

Hey gang, We have about 30 Cisco 79XX phones all running latest 7.5 SIP. We are also using all Cisco Switches and Routers. Everything works great except that when you reboot a phone it takes like 3-5 minutes for it to come up. The phones spend tons of time 'Configuring VLAN..' We don't run any VLANs. Is there some way to skip this? In the 'Network Settings' I have

Running on Centos 5.6 with KVM... I was wondering if anyone had any luck configuring the NICs where eth0 and eth1 are bonded together with vlan support to a bridge? I noticed some threads show this as a possibility (http://lists.centos.org/pipermail/centos-virt/2009-November/001417.html), but haven't had any luck implementing it. There also seems to be a bug with 5.6

As the issue concerns both the -user (configuration) and -devel (OOPS), I''m sending this message to both lists. Some time ago I complained about two problems: - VLANs are not working on machines with 100 Mbit cards - I get a kernel Oops (sometimes panic) when I try to use bonding and VLANs with Xen The root of the issue is the same in both cases: VLAN interfaces must *not* be

As the issue concerns both the -user (configuration) and -devel (OOPS), I''m sending this message to both lists. Some time ago I complained about two problems: - VLANs are not working on machines with 100 Mbit cards - I get a kernel Oops (sometimes panic) when I try to use bonding and VLANs with Xen The root of the issue is the same in both cases: VLAN interfaces must *not* be

>I can not even get IP anymore from my DHCP Hate to ask the obvious, but is the DHCP server on the same VLAN?

--- In english --- Hello! I am to implement a new architecture of the network in my company but I do not know right where to start ... need help! Currently 90% of my servers are virtual machines under Xen. I have many valid IP networks and all Hypervisors are configured in bridge mode, to simplify. We have 3 VMWare ESX Hypervisor also in bridge mode. Some networks are exclusive to certain

I''m trying to implement simple untagged vlans on our switch and have misconfigured something.. ISP gw is on the default vlan1 (untagged) Router eth1 is setup on the switch with default vlan1 and member of vlan4. eth0 is default vlan4 which connects to the clients that are all default members of vlan4 eth0 is x.x.x.86/28 This is what clients are connecting to as their gw.. (no

I am using 8021q vlans on my servers, and I cannot figure out how to make PXE/DHCP work. Has anyone figured out how to do this ?

I''ve set up Traffic Shaping on a Linux Router. Using HTB with SFQ, i''m trying to slow down heavy downloading for 20 subscribers over a 2048 kbit downlink. I''m classifying internet related traffic using iptables marking. bri0 is my local lan bridge, receiving egress traffic destined for subscribers. tc qdisc add dev bri0 root handle 1: htb default 2 tc class add dev

Hi All, I'm having some problems getting postfix to relay mail. I'd appreciate any tips. Perhaps there are some settings which I may have missed, somewhere. The postfix mail server is on VLAN 250 (192.168.250.0) whilst I have several other users on other VLANs (e.g. 91, 92, 93, etc... 192.168.91.0, 192.168.92.0, 192.168.93.0, etc...). So, if I had a PC sitting on VLAN 91 with IP

My telco is moving to feeding me over fiber, breaking out with a media converter to one Ethernet interface. At present, I am retaining the static feed over copper on eth0, and taking the two new feeds via vlans on eth1. I have configured the static IP feed on eth1:790 as vlan 790, and that seems to be fine, and eth1:780 as the PPPOE feed, and brought up PPPOE to give me an IP, that is

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

My actual scenario is: -Hundreds PCs in a internal network (fixed IP), divided in +- 6 different subnets -A +- 6 customers with leased lines -A Cisco Catalyst 4006 connecting groups of PCs to corresponding customers (imagine a Call Center company) -Works fine. The problem: Frequently, it''s necessary to migrate dozens PCs from a customer to another. You know, change all IPs and