I am using cisco 2901 Router with IOS version 15M. In the configuration of the router I am using lots of static NAT entries. And I need to change these entries when it is requested.
And a possible solution for this situation are the confi...
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I am using cisco 2901 Router with IOS version 15M. In the configuration of the router I am using lots of static NAT entries. And I need to change these entries when it is requested.
And a possible solution for this situation are the confi...
I am tasked to do conditonally advertise a default route using RIP only if a specific IP address is ICMP reachable. (Yes, CCIE study, not a real network design).
My idea was to use the track object matching feature to accomp...
Would a ping (echo request) to a reachable IP address with a size of 65500 bytes, end-to-end path MTU of 1500 Bytes, and the DF flag not set, work by having the peer responding an ICMP?
21:05:31.325718 IP (tos 0x0, ttl 128, ...
I'm trying to understand something related to network ports, as it's not quite clear to me.
The question is, why can't you use the same port number for both incoming and outgoing traffic?
This question arose due to some advice on NAT por...
A new report from the National Academies of Sciences, Engineering, and Medicine says that Medicare’s value-based payment programs could take into account social risk factors – such as low socio-economic position, residence in disadvantaged neighborhood...
i am playing with the 802.11 header, trying to figure out the encryption type of incoming 0x08(DATA) packets.
1) I capture the 0x08 type packet (DATA).
2) I find out that a WEP bit is set (2nd byte of Frame Control, 7th B...
I am reading Computer Networks by Tanenbaum. It says that there can be three types of services in data link layer.
Unacknowledged Connectionless
Acknowledged Connectionless
Acknowledged Connection-oriented
I can understa...
Since the destination and source MAC addresses in a frame in a LAN change, how does it know where to finish, as the destination is only the next hop?
And if there is a switch, which connects to hosts and another switch, and the 2nd switch...
I'm trying to understand how SLAAC works, but having troubles understanding how the information inside the Router Advertisement is used by a client.
Let's say neither the Manager nor the Other Conflig Flags are set and the R...