TODAY ONLY: Openlibre VPN/IPtables/NAT troubleshooting in AWS

$30-250 USD

Completed

Posted

over 2 years ago

$30-250 USD

Paid on delivery

Must be available TODAY Need assistance with diagnosing an issue with a VPN that is connected to a partner We are using libreswan on an EC2 instance as we need to address all of our traffic to a single IP as the source and destination CIDR's overlap. The VPN connection is established and is reaching the partner, but not getting and responses back. We do not have access to the partner - but would like somebody who can help diagnose the issue perhaps with Wireshark Likely ENI/Routing/iptabes related Technology: - libreswan/nat/iptables for an Amazon ec2 based VPN to a vendor connection Must be very proficient with iptables, nat, networking, aws, wireshark

Amazon Web Services

Network Administration

Linux

System Admin

OpenVPN

Project ID: 32220172

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2 proposals

Remote project

Active 2 yrs ago

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Awarded to:

@AhmedMFakkar

$0 USD in 1 day

4.9

(265 reviews)

7.2

2 freelancers are bidding on average $150 USD for this job

@bellodominus

Hey! In fact, this is a well-known issue for a long time. When configuring IPTABLES, the tcp or udb packet is edited (and decreasing the TTL by 1) and changes the recipient to itself. The response from your partner actually comes. But it gets stuck on your server. when editing the original package, you cannot specify to whom to return. That is, your server receives a response but does not know what to do with it and burns it there. There is a solution to use a tcp-proxy. I can write to you on the NodeJS or create from existing solutions. Describe your task detailed and I will select the best and fastest solution for you

$200 USD in 1 day