marctxk
  • Member for 5 years, 6 months
  • Last seen more than 4 years ago
Does a VPN service "anonymize" a mobile connection just as much as a landline connection?
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1 votes

Your mobile provider will be able to link your SIM card with your IP address and you data. This helps with routing, billing, service selection, optimisation, and child-protection. This is all ...

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resolving IP address to FQDN effectively
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1 votes

The web site URL is not a network or transport-layer entity. It is visible only at the application layer and may be encrypted anyway. Don't forget that a URL can resolve to many IP addresses, and a ...

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Does a router that connects to multiple networks, has a network card and forwarding table for each connection?
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1 votes

A router (or routing instance) will have a single layer-3 forwarding table for all interfaces, not one per NIC. Except for an aggregation router as used in an ISP (which will not necessarily be ...

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Internal NAT before establishing a VPN Host-to-Host
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In the situation of overlapping address ranges, if the source and destination are both in the overlapping range then you will need to NAT both source and destination IP addresses (twice-NAT) if you ...

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Packet sizes in a TCP stream
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If you look at frame 34, you will see that the server has transmitted a 32kB buffer and that the PSH bit is set. If you look at 82 you will see the same, 32 kB from the previous PSH bit. Packet 52 ...

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Do we really need ARP when only hubs are used to connect devices?
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Peter and Jaap are both right but more fundamentally, we use a layered model to ensure interoperability between vendors. The MAC layer uses a MAC address, full-stop. ARP allows us to discover those ...

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The difference between simple ACK and ACK aggregation improvement in TCP
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It's not a term I've come across, perhaps you could provide the reference. However most acks are aggregated for example during a steady-state data transfer, say a large file going in one direction. ...

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What is the common notation of multiple subnets
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In all my days I've never seen anyone want to do this but if you really must have a technically correct description you need to use a mask, not CIDR notation and for all /29 nets I guess that would be ...

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building a private cloud
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Unless you have a specific need for NFS, why bother? I don't see much NFS in corporate environments myself. What I do see is iSCSI presentation of LUNs to ESX hosts. Use four dedicated iSCSI VLANs ...

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In the TCP/IP model, how does the application layer inform the Internet layer of the destination IP address?
-1 votes

Simplified: The application opens a TCP connection using a socket call. One of the arguments to this call is a pointer to a socket descriptor structure. The socket descriptor is partially poulated ...

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