On Wed, 6 Jun 2001, Dmitri Kalintsev wrote:
> We're about to implement pVLANs in our IDC. I have a burning question
> regarding addressing and cross-customer access when using pVLANs. Consider
> this:
>
> 1. IP address block used for customers (valid routable IP block) is say
> x.x.x.x/21
>
> 2. Imagine that we have a customer, who runs popular database (for example,
> geographic map database) and we have few other customers who wish to use
> this database from their applications running on their servers, so they will
> need an access to first customer's server, but only to one service, so
> placing them all together in community vlan will not cut anything besides
> making first customer very pissed off.
>
> 3. Giving all customers netmasks of /32 and assigning promisc port netmask
> of /21 won't help for obvious reasons.
Cat 6k, 7600 OSR MSFC and Cat 3550 has a "local proxy-arp" function that
would solve this problem I believe.
/Jakob
-- Jakob Schlyter <jakob@crt.se> Network Analyst Phone: +46 31 701 42 13, +46 70 595 07 94 Carlstedt Research & Technology
This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:12:40 EDT