IPv4 vs IPv6 comparison

[jpimenta21901]

hello everyone, i was wondering if it is possible that ipv6 dropping more packets than ipv4.  i run a test using D-ITG, to test data and voice, but on IPv6 lost more packets than ipv4, special when i sent voice and data together, i was wodering why could that be?, another question, in order to have a dual stack router, i would put ipv4 and ipv6 address on the interfaces, do i need enable something else, because i tried with packets tracer, and i could not ping from an ipv4 host to a ipv6 host, dual stack should allow that right?  thank you in advance

thank you in advance

[Seb Rupik]

Hi there,

It is hard to determine the cause of the packet loss without knowing more about your topology.

Try the following commands on the devices along the transit route:

sh ipv6 cef switching statistics

sh ipv6 traffic

Regarding your second question, 'dual-stack' implies the switch/router has interfaces which can forward/ route both IPv4 and IPv6 packets simultaneously. It does not provide a translation mechanism for hosts using different protocol stacks to communicate. If you need that, then a NAT64 device/ process is required.

cheers,

Seb.