3 ms·
> most routers can and do read info in tcp/udp headers. Do most routers really do that, or just the ones which are also trying to act as a firewall?
by cesarb 3y ago
> most routers can and do read info in tcp/udp headers.
Do most routers really do that, or just the ones which are also trying to act as a firewall?
- wmf 3y agoFor example, IP routers often peek at UDP/TCP port numbers to calculate ECMP flow hashing. This is technically naughty but it's read-only and it's only an optimization that isn't required for correct forwarding.
- Hikikomori 3y agoYes. I doubt you can find one that is not capable.