Hello, I think is best to use only one address, and do BGP to your ISPs (moving DNS inside your network is a good idea also). ----------------------------------------------- Gabriel Neagoe, GN379-RIPE Networking solutions consultant CCNP, CCDA S&T Romania tel: +401 20 40 300 fax: +401 20 40 310 ----------------------------------------------- > -----Original Message----- > From: Nurarif Wibawa [SMTP:[EMAIL PROTECTED]] > Sent: Wednesday, September 06, 2000 11:38 AM > To: [EMAIL PROTECTED] > Subject: dns > > Hi, > > I need a solution for the configuration below: > > Internet > | | > | | > ISP A ISP B > | | > | | > Customer > | > ---------------------------- Web Server > > Web Server will has 2 IP addresses, one will be given by ISP A and the > other one will be given by ISP B. > Primary DNS server is on ISP A and secondary DNS server is on ISP B. > The DNS server on ISP A has two records for customer's web server, for > example : > www a 10.0.0.1 (IP address given by ISP A) > www a 20.0.0.1 (IP address given by ISP B) > The goal is to use dual ISP for back-up purpose, so the web server will > serve for 24 hour / day. > Since the DNS server only load balance between two same host records, how > about if one link is broken ? > For example : > Link from ISP B to Customer is broken, meanwhile someone in Internet is > accessing the web server and the DNS server give him the IP address of > 20.0.0.1, so the session will time out. He will has an access to web > server until the DNS server give him the IP address of 10.0.0.1 (because > the DNS server load balance these two records). > Are there any solutions to solve this problem, so the DNS server could > detect the unreachable IP address and after that it would give the correct > reachable IP address to the client ? > > Thank you > ___________________________________ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
