Thanks for your comment. I'm glad you like the video. When a packet comes in to a router interface, the router has to decide what to do with the packet, so it processes it through the routing table. If the packet is blocked from ever entering the router, it doesn't have to process it through the routing table, thus conserving processor cycles.
Wow, that was a fast response. I have watched almost every video on Cisco routing and switching there is on TH-cam. Keith Barker's and Jeremy Ciaro's are very good too. I am a subscriber to yours now also. Keep em coming. Russ Barker
Thanks for your comment, Russell. Part 3 will be available next week. I'm also going to make a video on editing access-lists, which I think will be helpful, too.
Thanks for the awesome video. One question I want to ask is that, what type of processing power you mention happens at g0/2 interface when you apply the access list to interface g0/0 out? Thanks in advance
Thank you for your explanation. I have a question. At 10:00 Can we write access-list 100 deny tcp host 10.3.0.0 host 10.1.0.1 eq 23 ?. Or it must be 10.3.0.0 0.0.255.255 ?
if youre newer and watching this , 2017, you dont HAVE to have equipment per say. you can get solid software simulation like boson netsim and even until you get it, this will help you learn it until then
Nice video series, great voice. Studying while cooking dinner and cant see clearly on my phone. My only request would be to zoom in on key items, but otherwise excellent. Thank you
About IP 192.168.30.3, without a subnet mask or wildcard or CIDR notation, how may the router know where this host belongs to (network or subnetwork) and make the ACL statements tests? It may be part of 192.168.0.0/16 network, or 192.168.0.0/17 etc. etc. Of course part of 192.168.30.x segment, but needs /24 stated.
Good question. The answer is that it doesn't matter which network it's on. Any packets with a source or destination address of 192.168.30.3 will match the ACL that uses the ACCOUNTING object-group. It's much the same as when you ping a host you don't need to specify a mask. The use of the host statement actually implies a 32-bit mask, thus matching all bits. Thanks for your question.
Thanks for your comment. I'm glad you like the video. When a packet comes in to a router interface, the router has to decide what to do with the packet, so it processes it through the routing table. If the packet is blocked from ever entering the router, it doesn't have to process it through the routing table, thus conserving processor cycles.
Wow, that was a fast response. I have watched almost every video on Cisco routing and switching there is on TH-cam. Keith Barker's and Jeremy Ciaro's are very good too. I am a subscriber to yours now also. Keep em coming. Russ Barker
all of your videos have made everything crystal clear! awsome!
Thanks for your comment, Russell. Part 3 will be available next week. I'm also going to make a video on editing access-lists, which I think will be helpful, too.
Thanks for the awesome video. One question I want to ask is that, what type of processing power you mention happens at g0/2 interface when you apply the access list to interface g0/0 out?
Thanks in advance
I watched this video and part one already. Very easy to understand. Thank you.
thank a lot for those videos
Thank you for your explanation. I have a question. At 10:00 Can we write access-list 100 deny tcp host 10.3.0.0 host 10.1.0.1 eq 23 ?. Or it must be 10.3.0.0 0.0.255.255 ?
if youre newer and watching this , 2017, you dont HAVE to have equipment per say. you can get solid software simulation like boson netsim and even until you get it, this will help you learn it until then
Nice video series, great voice. Studying while cooking dinner and cant see clearly on my phone. My only request would be to zoom in on key items, but otherwise excellent. Thank you
This video is Very helpful for us.plz clear this concept about wild address why we sue 0.0.0.0 or 255.255.255.255 on ACL
When you say a list of 10 or a list of 100 is that mean a group of 10 or 100 computer in a network thanks
About IP 192.168.30.3, without a subnet mask or wildcard or CIDR notation, how may the router know where this host belongs to (network or subnetwork) and make the ACL statements tests? It may be part of 192.168.0.0/16 network, or 192.168.0.0/17 etc. etc. Of course part of 192.168.30.x segment, but needs /24 stated.
Good question. The answer is that it doesn't matter which network it's on. Any packets with a source or destination address of 192.168.30.3 will match the ACL that uses the ACCOUNTING object-group. It's much the same as when you ping a host you don't need to specify a mask. The use of the host statement actually implies a 32-bit mask, thus matching all bits. Thanks for your question.
@@doncrawley Thank you for your reply and time. It want another bridge in the IT knowledge we get in your videos and channel.
Nice video.. Good explanation and very easy of understanding..!!!
thank you very much. this video has been very helpful.
Great video. Very helpful.
Object-group, why did you use mask instead of wildcard? All along it’s been wildcard so why using mask?
great video!
Okay thanks for clarification. Awesome and thanks a lot.