Sorry for the late reply. > 6.2.1. says, > > 2369 The above variables contain information that is > placed in outgoing > 2370 Router Advertisement messages. Hosts use the > received information to > 2371 initialize a set of analogous variables that > control their external > 2372 behavior (see Section 6.3.2). Some of these host > variables (e.g., > 2373 CurHopLimit, RetransTimer, and ReachableTime) > apply to all nodes > 2374 including routers. In practice, these variables > may not actually be > 2375 present on routers, since their contents can be > derived from the > 2376 variables described above. However, external > router behavior MUST be > 2377 the same as host behavior with respect to these > variables. In > 2378 particular, this includes the occasional > randomization of the > 2379 ReachableTime value as described in Section 6.3.2. > > Especially, > the sentence - "external router behavior MUST be the same as > host behavior with respect to these variables.", > is unclear for me. > > Does it mean that > the router has the same values as what the host receives from RA?
=> I believe it means that while the exact same variable might not exist in hosts and routers, the external behaviour (on the wire) should be consistent on both ends. For instance, if the IsRouter falg does not exist in the router, it still has to send NAs with the R flag set. I hope this clarifies it. Hesham =========================================================== This email may contain confidential and privileged material for the sole use of the intended recipient. Any review or distribution by others is strictly prohibited. If you are not the intended recipient please contact the sender and delete all copies. =========================================================== -------------------------------------------------------------------- IETF IPv6 working group mailing list ipv6@ietf.org Administrative Requests: https://www1.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------
