Priscilla Oppenheimer wrote:
>
> When a workstation starts up, it can multicast an ICMP router solicitation
> packet to ask for immediate advertisements, rather than wait for the next
> periodic advertisement to arrive. Although most routers support RDP, few
> workstation IP implementations support it, so RDP is not widely used. RDP
> is not the default configuration on Cisco routers. If had been the default,
> like Proxy ARP is the default, RDP might have caught on.
Interestingly enough, Windows IP stacks since Win95 Winsock2 have included
IRDP. If you capture one booting, you'll see the solicitation multicast.
And I _thought_ that recent U*nix stacks included it as well. E.G.,
Solaris included it, while the older SunOS required adding the client as
a separate download and install.
As for why it didn't catch on -- in a single router situation, it only takes
care of part of the configuration on the workstation. The IP address and
mask still must be statically entered, so why bother. IRDP is more
flexible with multiple routers and priorities, but HSRP and later VRRP
did the job with faster failover times, while totally transparent to
the workstation.
- Marty
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=8508&t=8470
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