If you are using EX Series, take a look at PVLANs - http://www.juniper.net/techpubs/en_US/junos10.0/topics/concept/private-vlans-ex-series.html
This allows you to split broadcast domains into separate isolated broadcast subdomains to constrain connectivity while at the same time keeping devices in the same subnet and thereby reducing your overall IP address utilization. HTHs. Stefan Fouant JNCIE-SEC, JNCIE-SP, JNCIE-ER, JNCI Technical Trainer, Juniper Networks Follow us on Twitter @JuniperEducate Sent from my iPad On Oct 10, 2011, at 4:59 AM, Richard Zheng <rzh...@gmail.com> wrote: > Hi, > > Here is our setup. Customer A comes in on vlan 2001, customer B on vlan 2002 > and etc. We may uses separate subnets for each vlan. However it wastes lots > of IPs. Is there a way to use the same subnet, e.g. vlan 2001 uses IP > 10.0.0.10, and vlan 2002 uses IP 10.0.0.11 and 10.0.0.12. How about use > 10.0.0.1/24 as loopback, enable proxy-arp on each vlan, then put a filter on > each interface to only allow assigned IP to go through? > > Would this work on M7i/M10i? > > Thanks, > Richard > _______________________________________________ > juniper-nsp mailing list juniper-nsp@puck.nether.net > https://puck.nether.net/mailman/listinfo/juniper-nsp _______________________________________________ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp