Harry Lachanas wrote: >Are there any users in the list that have Fiber optic connection to the net ? > >Is there an option similar to bonding or ML-ppp that ISP's provide >for fail over redundancy ?? >and >last but not least ... >How is shorewall + linux + hardware behave in these setups ( if any ) ???
I'm not aware of any ISPs offering such a product, but it would not surprise me in the least to find that there are some - at a price. Multiple links/failover/some sort of backup is actually quite commonly available on business networks (at business network prices), but my experience has the ISP providing a dedicated router on-site as part of the package so that the customer never sees any of the "back end" workings - the customer just gets presented with an ethernet port on a router. How a Linux box would handle it would very much depend on the service from teh ISP, and possibly your programming skills to set it up. As Tom has already pointed out, you can already handle multiple ISPs with Shorewall - but traffic egressing on each link will have an IP address linked to that link, and if you do lose a link, then traffic that fails over will switch IP addresses as well which will break sessions etc. There are packages offering various levels of virtual router/automatic failover available for Linux (I've got keepalived running on some machines at work for this), but I'm not aware of a package that will offer quite the transparency to network devices that HSRP offers on Cisco kit where even the MAC address is shared across routers (for example). keepalived does appear to be somewhat more flexible and comprehensive though from my reading of the docs. -- Simon Hobson Visit http://www.magpiesnestpublishing.co.uk/ for books by acclaimed author Gladys Hobson. Novels - poetry - short stories - ideal as Christmas stocking fillers. Some available as e-books. ------------------------------------------------------------------------------ Learn how Oracle Real Application Clusters (RAC) One Node allows customers to consolidate database storage, standardize their database environment, and, should the need arise, upgrade to a full multi-node Oracle RAC database without downtime or disruption http://p.sf.net/sfu/oracle-sfdevnl _______________________________________________ Shorewall-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/shorewall-users
