Currently i have two small groups of computers, one formed by three computer plus guests (portables), connected to an ADSL router that has a static address of a.b.c.d and does natting, and is set to use dmz for one of the computers, and assigning two ports to each of the local computers for inbound service these computer locally use addresses 192.168.2.17 and up to 30 with a /24 subnetting ( 192.168.2.1 is the router ) the second group is formed by one computer plus guests and is connected via a bridge to the first one, and uses addresses from .49 upward. All works fine except that sometimes bandwidth available for the second group is insufficient (either since the internet band is saturated or is just saturated the link between the two subgroups). I decided to get a second ADSL link, with the same speed of the first one, but with a dynamic address, from a different ISP (to reduce possible problems), with a similar setup giving .33 to it) Now i wish the following: The first group continue to use the present ISP; the second one should use the second ISP except in the following cases: 1. is connecting to certain hosts [list A] using certain ports on the remote host (typycally 25 80 443 631 that have applications that depend on the address on the other side) 2. is connecting to certain hosts [list B] whitout respect of the port used 3. bandwidth used on the second link from other application/computers is above a certain threshold (to avoid slow response) Of course in case of a break on each of the links both groups should use the working one, and if one try to connect one of the computer in the other subnet should use the "direct" link.
I thought of setting the two routers so they assing the correct gateway to each computer, and this works fine (the bridge between slow the connections enought so the address is always given by the dhcp server on the "correct" side. for case 2 of course is sufficent setting a static route. how to do for case 1 and 3 ? how to set routing (if possible by dhcp) to use a route for certain remote ports and another for the others ? how to start two ftp connections possibly to the same host, but asking to use one route for one and another for the other ? (it would be easy if the remote host would be multi homed, but how to do if has a single address ? it is not a router problem this one but rather an application issue, since the connection would go to two differnte routers) ?? -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]