[Info-vax] SOLVED: Re: tcpip gateway question

glen herrmannsfeldt gah at ugcs.caltech.edu
Fri Oct 2 17:39:52 EDT 2009


urbancamo <mark at wickensonline.co.uk> wrote:
(snip)
 
< Oct  2 22:13:16 dell7500 dhcpd: DHCPREQUEST for 192.168.1.230 from
< 00:30:6e:f3:2c:a5 via ex0: unknown lease 192.168.1.230.
 
< The request fails because I've configured the DHCP server with the MAC
< address reported by OpenVMS.
 
< So what's going on here? If I configure DHCP to serve on the hardware
< MAC address I get the symptoms where I can telnet/ping any box on the
< subnet but *not* the gateway.

By "gateway" do you mean DHCP server?  It would seem that it puts
the first MAC address in the ARP cache.  I suppose others could get
the wrong address in the ARP cache until it times out.

I believe most reset the ARP cache based on incoming packets, though.

-- glen



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