so in my server (DNS, Mail,proxy) has real ip which given by ISP1.
my default route to ISP1
Now another ISP2 is connected in my central router , my aim is when ISP1 is down all traffic goes to ISP2.
ISP2 Ip is 112.123.12.X/30
For test purpose I am redirect route to ISP2. default route 0 0 ISP2.
My server IP segment is unchanged. now when I ping from my server to yahoo.com its ok. but when I am start browsing from my server, browsing is not ok. but that time when I am again defaut route move to ISP1 then browse is ok.
So its poroblem that LAN real IP another ISP and goes to different ISP ??
Radware is generally connected in between the router and the firewall or inside LAN in an one armed fashion i.e traffic enters and leaves thru the same port
The routing is modified in such a way that the default route which would generally point to the router is now pointed to the Radware and we have a /32 route for the FW interface pointing back to radware
When one ISP fails, the radware nats the packets again to the IP subnet of the 2nd ISP. This is called smart NAT by them. Your router can then be configured for PBR to route the ISP2 lan via the ISP2 link
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