6
votes
Accepted
Prevent TCP sequence prediction attack
The endpoints of TCP connections are instantiated in software through a construct known as a socket. An instance of a TCP socket is defined by the source IP address, source port number, destination ...
- 62k
5
votes
Accepted
Does a PC have a MAC address table?
Unless your PC is configured as a bridge, it does not have a MAC address table.
Since the PC does not forward frames from one interface to another, it has no need for a MAC table.
- 62k
2
votes
Can't ping the second network interface connected to a switch
Switch1 won't know jack about the network(s) on Switch2 unless you add an appropriate route. But as Win10 is not a router, one should not be routing foreign networks at it. (i.e. sw1's network cannot ...
- 29.5k
1
vote
Accepted
How to add the Hyper-V Virtual Machine to GNS 3?
The supported appliance templates can be download from the following link.
https://gns3.com/marketplace/appliances
For anything else, you can try to create your own template, like Kali. The one for ...
- 361
1
vote
Can't ping the second network interface connected to a switch
Your network is a really bad design. In order to route packets between networks, you use a router. In order to bridge frames on the same network, you use a bridge (a switch is a bridge). Your PC is ...
- 92.8k
1
vote
Connecting industrial devices to OPC server while keeping segregation
By the way, 192.169.0.122/.123 are no private IP addresses. You should never use public addresses that you're not authorized to. Check out RFC 1918.
There are two basic approaches:
You configure a ...
- 69.5k
1
vote
Unknown DHCP problem
You should put client (access) ports in admin-edge mode. That way, they don't start in STP blocked mode but will forward right away. The default config is auto-edge which causes a notable delay ...
- 69.5k
1
vote
Unknown DHCP problem
Spanning-tree starts all ports as "blocking" until it can confirm no loop. The process can take up to 30s. On my 2810, without any other explicit configuration, it only takes a few seconds.
I 01/01/...
- 29.5k
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