Is it possible some internet nodes do no support the hop-by-hop option header of ICMPv6 packets? it seems hop-by-hop option headers are read by all nodes on the path. my problem is the following: my kaspersky antivirus KIS 2018 adds hop-by-hop option...

in case you use "ip helper-address" on a relay agent router the dhcp server contains a default gateway but this default gateway is not the correct default gateway that the relay agent router with the command "ip helper-address" has to forward to it's...

I have a switch running vtp server that I have set to version 2. The other switches are vtp clients which I wanted also to set to version 2 but I got the message "cannot modify version in VTP client mode unless the system is in VTP version3" "Sh vtp ...

I have downloaded from: https://software.cisco.com/download/release.html?mdfid=281795035&flowid=5160&softwareid=282159854&release=3.5&relind=AVAILABLE&rellifecycle=&reltype=latest the last version of cisco configuration professional: cisco cp express...