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Hello Community,I always had a question how server determines at which network speed it can send traffic? I mean, for example some user in Australia wants to download file from server in Canada, there are a lot of links with different network bandwid...
Hello Community,Recently I faced interesting behavior of Cisco's routers and switches. I was playing with NAT configuration and just accidently observed situation when ping reply was with the different source IP address than the destination IP of pin...
Hello community,I need help with understanding of what "redistributed in" and "advertised by" really means in "show ip route" output. Originally, I thought that "redistributed in" means that this particular route exist in particular routing protocols...
Hello community,I have a question about EIGRP authentication. We don’t use plain text authentication, because anyone who can launch “man-in-the-middle attack” can easily steal password which is travelling through the network as a plain text.Please co...
Hello community,
I was checking how EIGRP is working on ISRv platform and noticed some strange behavior. Looks like Split Horizon rule doesn't work there. I configured EIGRP adjacencies between two routers: R1 & R2. Let's say there is
network 192.16...
@Joseph W. Doherty Hello. Thank you for the reply. I have a couple of questions: As far as I understand, UDP doesn't support flow control, it just send the traffic. So, in case of UDP, traffic will be send from server to client at full speed and in ...
M02@rt37 So, for example server can send traffic at maximum speed of 10Gbps. Server will send it at 10Gbps, but user can receive only at 1Gbps. Does it mean that 9Gbps of traffic is discarded by the network devices?
M02@rt37 Hello.Thanks, but you didn't answer my question. For example: link between server and switch is 100Gbps, link between Switch and Router 10Gbps, link between Router and to another Router connected the user is 5Gbps and link between Router an...
@Richard Burts Hello. Thank you for the reply.1. I already tested scenario you provided and in that case R2 will reply to R1 with ping with source 172.16.2.2, not with address of outbound interface. Even more, you can ping loopback interface of R2 a...
M02@rt37 Hello. Looks like, only you understood my question correctly so far. Thank you so much for this. Could you please provide me any source, preferably from Cisco articles, that "Routers do not perform strict checks on ICMP source and destinati...