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4 questions
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How to block all inbound traffic from a specific Internet address or subnet using TomatoUSB router software (LINUX based)
I'm not trained in Linux, but I think I found the solution to my problem documented, but it is not working as expected. I am NOT an iptables guru, I'm learning as I go.
A Russian IP is trying to ...
- 171
3
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3
answers
881
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Is a router without inbound firewall a security issue across the internet?
Imagine this scenario: Alice has a private subnet (192.168.1.0/24) connected to a router which is also connected to local network B. Alice's router performs NAT (only using MASQUERADE; outbound ...
- 13.2k
10
votes
1
answer
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Vulnerabilities of pure NAT without firewall
Following some of the comments on this question, I was curious about the security vulnerabilities of NAT. There are similar threads here and here but they discuss router vulnerabilities rather than ...
- 466
6
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2
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How can I obtain the internal IP of a computer behind NAT but reachable via certain TCP port?
I want to obtain internal IP of a remote computer behind a NAT that I can reach by using some port, say myhost.farfar.away port 11122TCP:
C:\>telnet myhost.farfar.away 11122
SSH-2.0-OpenSSH_6.6....
