Generic Routing Encapsulation (GRE) is a tunneling protocol, developed by Cisco.
Generic Routing Encapsulation (GRE) is a tunneling protocol, developed by Cisco.
Questions tagged [gre]
131 questions
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preventing ipv6 packets from being generated when creating a gre tunnel
I have a veth device, each side of it is in a different network namespace on the same machine. I am creating a gretap tunnel over this veth. when setting the gretap device to up state I can see a lot of packets like this being generated on the…
barisdad
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Suppressing ICMP protocol 47 unreachable with userspace GRE implementation
For reasons that would require a lot of irrelevant context to explain, I'm handling GRE packets with a userspace process with a SOCK_RAW/IPPROTO_GRE socket. This is working fine, except that despite having a raw socket accepting the GRE packets, the…
R.. GitHub STOP HELPING ICE
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Tunnel Linux traffic to Windows
I have two servers. Windows and Linux. Let's say Linux has the IP 1.2.3.4 and Windows 5.6.7.8. I want all traffic to be forwarded to windows as a tunnel. If I connect with 1.2.3.4:329 I want to connect with 5.6.7.8:329.
Allright
Linux (ubuntu)…
DGB Productions
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Forwarding Home Game-Server through GRE Tunnel | Can't ping remote GRE IPs
I am having trouble routing my game-servers through GRE. I do not receive a ping from either side when pinging them. I can ping the local GRE interface; however, I cannot ping the remote GRE interface.
What I am attempting to do:
I have a DDoS…
planetnation
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Packets not getting forwarded on Centos7 between GRE tunnels
I'm have configured GRE tunnels between centos machines and corresponding routing tables on individual centos machines as shown in the image:
I dont have enough reputation to post…
nguns
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Interface bonding on GRE tunnel with nmcli
I have two Ubuntu server-based routers and I'd like to bond (in broadcast mode, since I only care about redundancy) a radio link (where the radio equipment is connected to an Ethernet port) and a LTE channel (that uses a mPCIe modem) upon which a…
RH6
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gretap tunnel return traffic not being handled
I'm using iproute2 to add a GRE layer 2 tunnel with a vlan tag as shown below.
ip link add name gre1 type gretap local 10.0.0.2 remote 8.8.8.8
ip link add name gre1.100 link gre1 type vlan proto 802.1q id 100
ip link set gre1 up
ip link set gre1.100…
Preston
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GRE tunnel / Route traffic based on which domain the user is trying to access
Imagine this kind of setup. 5 servers. 1 server will be the "front-end", all the traffic has to go through it first before going to the 4 other servers.
I don't want people to know the IPs of the other servers, so they will be stuck at server 1…
viniciusmunich - AssabetTech
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Using OVH VPS as a shield to dedicated machine
I am having a few dedicated machines in a few hosting companies which either do not offer DDOS protection or their protection is awful. I've been contacting a few hosting companies and friends and got a suggestion about using OVH VPS as the first…
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GRE tunneling in vmware vsphere guest
Is it possible to make a GRE tunnel between a dedicated linux machine and a vmware vsphere guest VM (running debian wheezy)?
Tutul
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GRE tunneling using Open vSwitch
I am trying to implement tunneling as described here with the following setup (without any success):
ho1 is a host only interface. I want to connect Nested Guest 11 and Nested Guest 21.
I have read some other tutorials…
a5hk
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