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Questions tagged [ip-forwarding]

138 questions
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Subnet to subnet forwarding traffic

I'am wondering how to forwarding traffic from a gateway to subnet. network setup I have this working setup, Host A behind tunnel can ping HOST B 10.151.0.1 but not HOST C 10.151.0.2. If I TCPDUMP packet on HOST B 10.151.0.1 ( the subnet gateway ), I…
subafr
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How can I forward / redirect http to a public IP with nginx?

I have a domain example.com with DNS A record pointing to a public ip x.x.x.x. I need to get all http and https requets from that server and forward that traffic to another public ip y.y.y.y. Any ideas of how can I accomplish that? I have been…
Rodrigo Ortiz
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Why IP address overlapping occurs in IP forwarding table?

My understanding of an IP forwarding table is that they have a listing of different networks (identified by their IP ranges) and connects it to the next-hop router. However, I'm surprised why two entries in this listing have overlapping IP…
Pagol
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Forward ISP IPv6 from LAN to secondary LAN

I want to forward (or bridge, next to routing ipv4) the IPv6 internet connection from the LAN1 to LAN2. IPv6 internet is accessible on LAN1. I have a windows server, configured as NAT router between LAN1 and LAN2. This server is the DHCP, and…
LabodiDavid
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OpenVPN - Access to other client private network

I know that this title seems to be "over answered", but really I had no luck while searching... EDIT: I've updated the diagram and the question, to be more precise To better explain my situation, here is a little diagram: I'm trying to have "PC…
Doubidou
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How to access the floating ip in browser rather than a localhost?

I have an instances that was made in OpenStack which have a floating IP for its instance, the IP for this machine is 10.1.1.164. I tried to forward this instances so it will accessible in my firefox browser locally. First i used this ssh command to…
Gagantous
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IP/Packets Forwarding

I have searched a lot about IP + Packets forwarding but there was not enough information to find. Is forwarding only used in case of Virtual Private Networking or it has also other uses? if yes, when are they used? and what is the purpose of them…
Jwan
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forward all traffic between two ports without iptables

I have read this: Port forwarding on Linux without iptables? I have a vps and I have ran lxc containers on it. I want to redirect all incoming traffic from one outside port to one port of a container (for example 190.23.43.54:80 to…
HHHHHH
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Selectively setting default gateway for traffic forwarded by IP tables

I'm attempting to forward traffic from a publicly available host to a private host located on a VPN. The TCP packets need to retain the original source IP address. I've set IP address forwarding: echo "1" > /proc/sys/net/ipv4/ip_forward And I've…
sflogen
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Ip forwarding - multiple subnets, multiple Ethernet ports

There are plenty of examples on here of how to forward ip traffic on a linux machine, and a few examples of how to forward traffic from one interface to another. However, most of the latter examples concern themselves with connecting one machine to…
scs675
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NAT public IP to local IP | IPv6

I'm trying to create a small gateway for a home project. I have a NODE, GATEWAY and EXTERNAL machine, running on a public IPv6 network. Though the NODE is not connected via ethernet, but my goal is to connect it to the IPv6 network, using the…
Benjamin Larsen
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Ip forwarding very slow in google cloud

I have set up GCE-instances (google cloud) and EC2-instances (aws), and I want to set up routing like this: AWS-DUB <-A-> GCE-LON <-B-> GCE-TOK <-C-> AWS-TOK Connection A is wireguard VPN. Connection B is google cloud internal network. Connection C…
PerR.
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Host and VM share same IP frustrating intent to forward all incoming traffic to UTM on VM, what to do?

I a new to virtual networking and have been at it about 2 months. I have a physical machine (PM) with physical ports eth0 and eth1. Eth1 is not being used. Rather, eth0 is attached to both the WAN on PM and to VM1 it seems. I want PM to forward all…
gbambo
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How to test route lookup performance?

I need to test (IPv6) route lookup performance in the Linux kernel. I want to know how much time it takes to find a match if there are 100 routes, or 1000, or 10000 and so on. I'm using containers, so the only limit on number of nodes is memory…
devil0150
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How to Access a host behind a server over VPN (IP Forwarding)

I have a Ubuntu server (172.10.200.11) and many remote terminal units with simcards and each individual simcard operator using different IP pool such as 10.57.0.0/16 for OP-A, 10.112.0.0/16 for OP-B, etc. In the server actually i am using a routing…
crackerboy
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