I have a PCAP basically stating two things:

  1. An ARP request who has 192.168.a.b? Tell 192.168.b.c An ARP answer with the MAC address follows of course.

The following requests all access an web app, which seems to be .php based (I can judge from the .php endings):

  1. from 192.168.x.x to 10.x.x.x (access web app)

The traffic from point 2 is purely HTTP TCP and I need to reach the 10.x.x.x network, since I want to reach the web app.

I am connected via a VPN tunnel and I could discover the is somewhy and somehow reachable by nmap and shows 53 port open, so it's probably DNS.

I tried the following:

sudo ip route add 10.x.x.x 192.168.b.c

But this doesn't seem to reap any results... How do I further pivot and access the web app?

  • This is a weird collection of facts, details, and missing details. I can't make heads or tails of it. Ultimately, I'm not sure what this has to do with security. This is a pure networking problem, and you don't even describe the network. And you had an odd collection of tags...
    – schroeder
    Dec 26, 2022 at 14:21
  • 1
    @schroeder could you please accordingly migrate the question then? What exactly needs improvement as well? Dec 26, 2022 at 14:23
  • Migrate where? This needs to be completely re-written before it can go anywhere.
    – schroeder
    Dec 26, 2022 at 14:23
  • "I'm connected to a network via VPN. The address I have on the VPN is X. How do I reach the server with IP Y? The network looks like Z." If you can't provide any of those details, no one can even guess what routing would be necessary.
    – schroeder
    Dec 26, 2022 at 14:25
  • "ip route add doesn't seem to reap any results" -- why would you think it would? Is 192.168.b.c a gateway? Do you know how to discover the gateway? This pcap file, were you given it or did you capture it? (you used a passive voice). Nothing here makes sense and there is no indication that you know what you need to know to accomplish your task. And we can't teach you networking.
    – schroeder
    Dec 26, 2022 at 14:26


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