Aug 25, 2005 · ICMP (ping, trace)is a layer 3 protocol suite within the TCP/IP suite, doesnt test any layer 4 or above functions, therefore, it has no TCP/UDP layer 4 port number. The sub …

Aug 25, 2005 · ICMP (ping, trace)is a layer 3 protocol suite within the TCP/IP suite, doesnt test any layer 4 or above functions, therefore, it has no TCP/UDP layer 4 port number. The sub …

@FrankGuthrie - IP protocol numbers are used in a similar fashion to port numbers in TCP or UDP. Just as port numbers tells TCP/IP to direct datagrams to a specific upper OSI layer …

Mar 8, 2006 · Ive been reading in here that having all the port numbers in a table and memorising them helps for the exam, but there are obviously many port numbers many of which are not …

Sep 15, 2013 · The IP Protocol field is used to identify the exact protocol IP is encapsulating. IP Protocol 1 = ICMP IP Protocol 6 = TCP IP Protocol 17 = TCP So generically, IP can be "any of …

The IP protocol number indicates what the protocol will be at the next layer. OSPF does not use a transport protocol so the IP protocol number indicates OSPF. RIP uses UDP so the protocol …

Hi, I have a topology with 2 vlans and router-on-stick, i was playing with ping and decided to do a icmp sweep, i was able to get the ip address of all host's from the vlan i was pinging. I try to …

May 11, 2009 · If you have a lab or PT, setup some ACLs with the diffferent port numbers. Or when see or read about a certain protocol say the port number. e.g. When you receive an …

Feb 20, 2017 · 'Ping' (Packet Internet Groper) tests that you have network connectivity at Layers 1, 2 and 3, and so have a basic IP Connection between the Ping Host and the device to which …

i need to know in detail about icmp port and what is the port number to block icmp :