What is RFC 1256 ICMP?

RFC 1256 ICMP Router Discovery Messages September 1991 2. Protocol Overview Before a host can send IP datagrams beyond its directly-attached subnet, it must discover the address of at least one operational router on that subnet.

What is checksum in RFC 1256?

RFC 1256 ICMP Router Discovery Messages September 1991 Checksum The 16-bit one’s complement of the one’s complement sum of the ICMP message, start- ing with the ICMP Type. For computing the checksum, the Checksum field is set to 0. Reserved Sent as 0; ignored on reception.

How does ICMP choose which router address to use?

RFC 1256 ICMP Router Discovery Messages September 1991 been redirected or configured to use a specific router address), it is expected to choose from those router addresses that have the highest preference level (see Section 3.3.1 in the Host Requirements — Communication Layers RFC [ 1 ]).

What are the tax rates for Section 1256 Contracts?

These contracts have lower 60/40 tax rates, meaning 60% (including day trades) are taxed at the lower long-term capital gains rate, and 40% are taxed at the short-term rate, which is the ordinary tax rate. At the maximum tax brackets for 2018 and 2019, the top Section 1256 contract tax rate is 26.8% —10.2% lower than the top ordinary rate of 37%.