On Fri, Oct 9, 2009 at 9:05 AM, Arun Tomar <tomar.arun at gmail.com> wrote: > ________ > ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?+------------+ ? ? ? ?/ > ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?| ? ? ? ? ? ?| ? ? ? | > ? ? ? ? ? ? ? ? ? ? ? ? ? ?+-------------+ ISP 1 ? ? ?+------- > ? ? ? ?__ ? ? ? ? ? ? ? ? ?| ? ? ? ? ? ? | ? ? ? ? ? ?| ? ? / > ? ?___/ ?\_ ? ? ? ? +------+-------+ ? ? +------------+ ? ?| > ?_/ ? ? ? ?\__ ? ? ?| ? ? if1 ? ? ?| ? ? ? ? ? ? ? ? ? ? ?/ > ?/ ? ? ? ? ? ? \ ? ? | ? ? ? ? ? ? ?| ? ? ? ? ? ? ? ? ? ? ?| > | Local network -----+ Opensolaris ?| ? ? ? ? ? ? ? ? ? ? ?| ? ? Internet > ?\_ ? ? ? ? ? __/ ? ?| ? ? ?box ? ? | ? ? ? ? ? ? ? ? ? ? ?| > ? \__ ? ? __/ ? ? ? | ? ? if2 ? ? ?| ? ? ? ? ? ? ? ? ? ? ?\ > ? ? ?\___/ ? ? ? ? ?+------+-------+ ? ? +------------+ ? ?| > ? ? ? ? ? ? ? ? ? ? ? ? ? ?| ? ? ? ? ? ? | ? ? ? ? ? ?| ? ? \ > ? ? ? ? ? ? ? ? ? ? ? ? ? ?+-------------+ ISP 2 ? ? ?+------- > ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?| ? ? ? ? ? ?| ? ? ? | > ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?+------------+ ? ? ? ?\________ > > > hi! > > I'm trying to achieve loadbalancing and failover on 2 ISP that we have. > roughly diagram provided above. > > There are couple of stuff that can be used, like ipfilter, ipmp, crossbow > etc. and i'm confused how to use these > stuff and achieve the above scenario. > > Couple of confusions: > > 1. Every ISP has their own gateway and dns settings. > 2. Both ISP may provide a static ip or may not, or only one may provide > static IP and other dhcp. > 3. Do we need to do NAT (between the osol box and ISP) or let them connect to > the osol box and do the NAT from the osol? > 4. Local network need not know that there are 2 ISP. They'll just send the > outbound to the osol box.
You need three interfaces: - one on the inside, which becomes the gateway for your inside network. - one connected to ISP_A - one connected to ISP_B > 5. Automatically use the other ISP (ISP2) if one (ISP1) goes down and start > using it once the ISP1 is working again. > How to achieve that eg: IPMP, or crossbow etc. ? IPMP requires that both the interfaces have a static IP configured. Since you have the really excellent opensolaris bible, see page 278. See : http://www.sun.com/bigadmin/features/articles/crossbow_net_virt.jsp > 6. How to get the intimation, if one of the ISP's (ISP1) goes down? or rather > the system will automatically log a complaint > with the ISP1 via mail, using the other working ISP2. > This is a useful requirement. I need to read up on this, and intend to ask on crossbow-discuss about this. > regds, > Arun. > > _______________________________________________ > belenix-discuss mailing list > http://mail.opensolaris.org/mailman/listinfo/belenix-discuss > http://groups.google.com/group/belenix-discuss >
