We have the same problem in our FTTH access network (due to L2 isolation CPE can't directly ARP those in the same subnet), hence the vendor's move towards MAC force forwarding (MACFF). Frank -----Original Message----- From: Ricky Beam [mailto:jfbeam@gmail.com] Sent: Wednesday, March 14, 2012 2:18 PM To: William Herrin Cc: nanog@nanog.org Subject: Re: Verizon FiOS - is BGP an option? On Wed, 14 Mar 2012 00:19:16 -0400, William Herrin <bill@herrin.us> wrote:
Nope. I have FiOS and the 5 IPs. They are 5 IPs, in sequence, at a completely arbitrary location in a /24 subnet. ...
Time Warner (TWTC, not TWC) does the same thing... we have 8 addresses from them... 131 - 138; it's a /24 and we get to use those 8 addresses. [Yes, that causes problems trying to access anything else in that /24] I have no clue what's on the other end of that, and really don't care. (it's more or less bridged ethernet over a T1, that's also carrying voice.)