search for: gre

Hi, In XenServer5.6 FP1 beta, I have switched default bridge to open vswitch, I wonder how to use "xe tunnel-create" to create a GRE tunnel. my commands: xe tunnel-create pif-uuid=eth0_uuid network-uuid=network_created_by_xe_network_create then I got an uuid which is "access-PIF" of output from "xe tunnel-list". what should I do next? how to set remote_ip and GRE type and GRE key? I already know how to...

Hi, I have the following setup. Two linux systems with two [test] external interfaces encrypted with ipsec [transport]. Two gre tunnels that pass 10.200.0.0/24 and 10.200.1.0/24 network traffic. Testing the balanced tunnels I would setup iptraf on one and ping from the other. The results would be as expected; traffic would be split between the two interfaces. Testing with an ftp transfer of 300MB I would get various resul...

Hello everyone, I have a problem regarding gre tunneling, I have two linux box both of them has a private network and the linux A is connected to the internet via wireless radio and the other linux B is connected to the internet via lease line. Here is the setup of my two linux box Linux A eth0 = 203.189.x.1 (internet) eth1 = 192.168.1.1 (goin...

Hi, Does anyone tried to get ipip or gre tunnel behind NAT environments. ? i''m trying to make both side tunneling with ipip or gre with private address just like belows.. A -------------------FIRWWAL -------------------INET ------------------- B PRIVATE PUBLIC PUBLIC (10.100.0.1...

Hi List, FYI. We have been using CentOS 6.4 and have 2 vpn/gre tunnels to separate cisco rtrs using ospf. with kernel 2.6.32-358.23.2 We have upgraded to 6.5 bit using kernel 2.6.32-431.5.1 and the exact same configuration scripts for our vpn/gre tunnels. What I see is the first gre tunnel works great and I get an ospf neighbor. The second tunnel comes up a...

https://bugzilla.netfilter.org/bugzilla/show_bug.cgi?id=512 ------- Additional Comments From kaber@trash.net 2006-09-18 07:36 MET ------- There are still some problems with the PPtP helper, I'm currently trying to fix these. Can you attach a tcpdump of a failed attempt please? -- Configure bugmail: https://bugzilla.netfilter.org/bugzilla/userprefs.cgi?tab=email ------- You are

...| | | | | +------------+ +-----------+ | | | 192.168.1.1(ipsec endpoint)----------------------(ipsec endpoint)192.168.1.97 192.168.1.1(gre endpoint)-----------------(gre endpoint)192.168.1.97 192.168.2.110 gre tunnel 192.178.2.96/28 192.168.2.97 Here is the setup on te Cisco: interface Tunnel6 ip address 192.168.2.110 255.255.255.240 tunnel source GigabitEthernet0/1 tunnel destination 192.168.1.97 exit ip route...

Hello, Here is my network: ------------------ ------------- ----------- Linux box ----------- GRE --------- Cisco ---------- ------------------ ------------- What I wan to accomplish. I want ripv2 to go across (both ways) through the GRE tunnel. No packets are being passed thought the GRE tunnel0. So first I have to fix my GRE tunnel. Well it...

Hi, I have the following setup. Two linux systems with two [test] external interfaces encrypted with ipsec [transport]. Two gre tunnels that pass 10.200.0.0/24 and 10.200.1.0/24 network traffic. Testing the balanced tunnels I would setup iptraf on one and ping from the other. The results would be as expected; traffic would be split between the two interfaces. Testing with an ftp transfer of 300MB I would get various resul...

Hi! Can I create the unnumbered GRE tunnel with iproute2 utility? Can someone provide me a link/howto/example_config how to do it? The topology is one tunnel between two linux boxes: -- eth1-|__|-eth0 <-------------> eth0-|__|-eth1 -- I''m trying now with: ip tu add tun1 mode gre local loc.IP remote rem.IP ttl 255 dev...

...me at. First here is a small diagram of what I am trying to configure: http://6bit.com/img/netdiag.png Currently I only have Shorewall running on the host on the right of the diagram until I can get this working then I''ll add it to the other host as well. I''ve read the docs on GRE/IPIP tunneling and the docs on IPSec transport with the 2.6 kernel. I''ve been able to get the IPSec transport connection set up successfully and the ESP packets are successfully flowing through the firewall. I am running Kernel 2.6.18, Shorewall 3.2.4, iptables 1.3.5, and iproute iproute...

I need to send multicast traffic through a GRE tunnel between two Linux routers. The tunnel works for normal IP packets, but I can''t see how to make it work for multicast. Here''s the setup: 10.10.10.0/24 LAN-B--------------RtrB-------------RtrC--------------LAN-C 192.168.2.0/24...

Hi Guys, Here is our patch to allow broadcast packets over a GRE tunnel. Hopefully it might be accepted into the source someday. You need to enabled bridging and GRE tunnels in your kernel. No other options are required. The gre patch determines what type of protocol type to put in the GRE header based on the whether the packet is forwarded from a bridge or n...

[Disclaimer : I'm not a network engineer] Hi, In a setup where OpenVSwitch is used with GRE tunels on top of an interface provided by tinc, I'm experiencing MTU problems and I'm not sure how to fix them. The manifestation of the problem is, from the user point of view, communication hang. And using "tcpdump -i there" displays lines such as : 18:54:00.345666 IP 10.11...

Hello, I connected the network 192.168.1.0 with 192.168.2.0 over the internet trough a GRE-Tunnel. I don''t know if I set up all things right: The client-pcs in both networks have a subnet mask of 255.255.255.0 and 192.168.2.x''s default gateway is the server wich has started the tunnel. The 192.168.1.x''s default gateway is 192.168.1.250 wich routes traffic desti...

I am attempting to setup an IPSec protected GRE tunnel with a Cisco router. I believe the IPSec association is up, however I cannot move traffic over the tunnel. It is not clear how to integrate the tunnel interface (gre1) with firewall-cmd; adding the interface to trusted does not appear to 'stick'. [root at aqueduct ~]# firewall-cm...

...sk seemed to be failing and found many files disappeared, I decided to remove it. I moved my other disk to it's place. Long story omitted. After installing my backup of /home and seeing firefox not restart, I started it from the command line with the immediate error: Could not find compatible GRE between version 1.9.0.5 and 1.9.0.5. I'm sorry, I'm at a complete loss. What's a GRE? -- Bob Taylor

I am trying to setup GRE between two CentOS 4.5 boxes. I have tried several variations of what''s listed below, but none of them work. box1: modprobe ip_gre ip link set gre0 up ip tunnel add gretun mode gre local 66.1.1.161 remote 66.1.2.161 ttl 20 dev eth0 ip addr add dev gretun 10.253.253.1 peer 10.253.253.2/24...

All, With the dual-ISP support in the latest versions of Shorewall, is it also possible to setup dual-VPN with something like OpenVPN? If so, what are the high levels steps that would need to be completed? Aaron

Hello, Consider this function for generalized ridge regression: gre <- function (X,y,D){ n <- dim(X)[1] p <- dim(X)[2] intercept <- rep(1, n) X <- cbind(intercept, X) X2D <- crossprod(X,X)+ D Xy <- crossprod(X,y) bth <- qr.solve(X2D, Xy) } # suppose X is an (nxp) design matrix and y is an (nx1) response vector p <-...