similar to: GRE Tunnels

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-cmd --add-interface=gre1 --zone=trusted The interface

Hi Devik/Patrik, In setting up IMQ/HTB with a GRE Tunnel I''m constantly getting kernel errors: [root@linux /root]# dmesg ... ... ... NET: XXX messages suppressed. Dead loop on virtual device gre1, fix it urgently! ... ... ... This I get only if I''m going to start cross device b/w control. If I remove iptables rule iptables -t mangle -D POSTROUTING -j IMQ then no such warning

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 ip link set dev gretun up ip route add 10.2.0.0/16 via 10.253.253.2 box2:

Hi, I have two systems each with 2 two gre tunnels over ipsec. The tunnels are setup to loadbalance using ''ip route''. Using ping from one server to the other I get equal results via the two gre tunnels, but when I try a large ftp transfer the utilization of one tunnel is 90% and the other 10%. The two interfaces are both 100/full. What would be the reason for this, or would

Hi , I am trying to set up a GRE tunnel between two linux routers. The routers have a 400 MHz Processor. Linux .2 65.0.0.2 Linux LAN1 -------- Router -------- INTERNET ---- Router ---- LAN2 10.10.10.0 .1 208.1.0.1 (Simulated) .1 .1 192.168.2.0/24 /24 Scripts to Create the tunnel ip tunnel add tun0 mode gre remote 65.0.0.1 local

Hi! I read http://mailman.ds9a.nl/pipermail/lartc/2002q4/006244.html and I did that. Can anyone tell me if there is something else to do for shapeing over tunnels to work? I noticed that gre interfaces don''t have a queue attached. I''m running linux-2.6.15 and iptables-1.3.4 with no patches. Thank you in advance, Sorin.

Hi! I want to add to my previous post that: my setup looks like this internet --> linux router with NAT and tc ==> gre tunnel ==> forwarding router --> LAN At my NATting router I can "see" the forwarded LAN (192.168.2.0/24). Now let''s say that there is a LAN workstation with the IP 192.168.2.18 and I filter the traffic with tc for it. If the fowarding router has

Hi! I have successfully set up traffic shaping at our site using your and others howtos. I have a linux firewall (gateway), two leased lines. I shape only the incoming traffix now. I use HTB+SFQ and sort the packets using iptables with the CLASSIFY patch. It works very well. eth1----ISP2-\ eth2----ISP1--LINUX--internal network eth0 My problem is, that i can not shape my VPN (PPTP)

Hi All: Ok, here is my network: 192.168.1.0/28 is the network behind the Cisco, the Gig0/1 interface is 192.168.1.1. Linux box is 192.168.1.96/28 behind with 192.168.1.97 the Eth1 interface. I have the Ipsec tunnel up and working between them using preshared keys. So that works. Here is the Cisco tunnel setup: interface Tunnel6 ip address 192.168.2.110 255.255.255.240 tunnel source

I'm new to Asterisk, but, Managed to get it working for outound calls from my ATA --> Asterisk --> Cisco 2620 using SIP. However, I'm having problems with Inbound calls from the Cisco.. Cisco 2620 --> Asterisk --> ATA .. In fact, voice mail won't even work.. This is a snippet of what I'm getting when I try to call the ATA -- Executing

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

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 eth0 ip addr add tun1 0.0.0.0 ip link set tun1 up but it

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) (211.xxx.xxx.xxx) (

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 not. To use the patch: # Create

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 192.168.2.0/24 192.168.1.0/24 RtrB interfaces: eth0

Hello, I''ve set up a GRE tunnel between two Linux boxes and it''s working well, with or without IPSEC (under GRE). The problem is that when I have no traffic for some minutes, side A cannot communicate to side B any more, unless side B tries to communidate to side A. The same thing happens in the other direction. For example, side A pings side B. No reply. Keep pinging. Side B

Hi All, As it is written in the "Linux 2.4 Advanced Routing HOWTO" GRE tunneling has some benefits compare to IP-in-IP, on of it benefits is the ability to transport multicast traffic through a GRE tunnel. I used the mrouted daemon and I know that the daemon supports tunneling but I don''t want to use its tunneling method. Assuming I have gre0 as my tunneling device I did the

Hello, I am doing some tests in my local network to test a GRE tunnel configuration. I can established a tunnel but if I stop send packets trough the tunnel , the tunnel goes down. I need to make ping from one side of the tunnel to the another side to wake up the tunnel. What could be my problem ?? Could be the VirtualBox ?? Thank you!

I've done the unspeakable. I took a working setup of 1.0.5 and upgraded with the latest cvs. with 1.0.5 distinctive ring worked great. with the latest cvs, it doesn't seem to work with my sipura 2000 (the only thing i have to test it with). I can see in console that its sending the info, but its not working? i realize the likely hood is I messed something up somehow during checkout or

Hi everybody, I want to do the following setup : | | Tun1 - Link 1 | Tun1 | | Router A | teql | INTERNET Link - | | teql |router B | | Tun2 - Link 2 | Tun2 | | This should permit to agregate Link 1 and Link 2 (less the cost of the encapsulation). The two tunnels are GRE ip tunnel. It seems to work fine