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How do you punch trough firewalls? You have to manually open them, punching through firewall would be a firewall vulnerability.
by whatevaa 10mo ago
How do you punch trough firewalls? You have to manually open them, punching through firewall would be a firewall vulnerability.
- tenacious_tuna 10mo agoThis is a common function of uPnP, which I've seen as features in router config pages since the mid 2000s. https://en.wikipedia.org/wiki/Universal_Plug_and_Play#NAT_traversal https://en.wikipedia.org/wiki/Universal_Plug_and_Play#NAT_tr...
- ectospheno 10mo agoRunning a firewall with upnp enabled has always amused me. Might as well just turn the firewall off if you let any machine shoot any hole it wants in it.
- mightyham 10mo agoTypically firewalls will record the src and dst header values of outbound IP packets then temporarily allows inbound IP packets that have those values flipped.