From: David Prall (dcp@dcptech.com)
Date: Wed Nov 14 2007 - 03:17:08 ART
For the P.DNS source address use the default route. For the S.DNS source
address use PBR to send return traffic via the DSL connection. Both will be
active all the time. It will be based on which DNS server is hit with the
request. Set your ttl on the DNS entries with something you can live with,
of course this doesn't mean a Caching server will respect the value though.
-- http://dcp.dcptech.com> -----Original Message----- > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On > Behalf Of Muhammad Saleem > Sent: Wednesday, November 14, 2007 12:47 AM > To: groupstudy@cconlinelabs.com > Cc: ccielab@groupstudy.com > Subject: RE: Two default gateway (IP Route ..) > > I have P.DNS and S.DNS servers, hosting inside of network, already > registered with the SaudiNIC, P.DNS contains IP Add from > ISP-1(connected > with VSAT), S.DNS will contains IP Add from ISP-2 (connected > with DSL), > If client is trying to access Web server it will go through > P.DNS and if > ISP-1 link is down then the client request will go through > S.DNS (ISP-2, DSL > link) and will reach my Web server. > I have not implemented this scenario yet but I think its gona work. > If I add one more IP Route like > ip route 0.0.0.0 0.0.0.0 192.168.43.2 > ip route 0.0.0.0 0.0.0.0 192.168.43.10 50 > > Is it gona solve my problem? > > Saleem > > -----Original Message----- > From: Tony Schaffran [mailto:groupstudy@cconlinelabs.com] > Sent: Wednesday, November 14, 2007 5:05 AM > To: 'Muhammad Saleem'; ccielab@groupstudy.com > Subject: RE: Two default gateway (IP Route ..) > > For what you are trying to accomplish, I am affraid it is a > little more > complicated than it seems. > > Without BGP, to get inbound traffic to your web and mail > servers, you will > need something like a Fatpipe device or some kind of dynamic DNS > implementation. > > > Tony Schaffran > Network Analyst > CCIE #11071 > CCNP, CCNA, CCDA, > NNCDS, NNCSS, CNE, MCSE > > www.cconlinelabs.com > Your #1 choice for online Cisco rack rentals. > > > -----Original Message----- > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On > Behalf Of > Muhammad Saleem > Sent: Tuesday, November 13, 2007 7:23 AM > To: ccielab@groupstudy.com > Subject: Two default gateway (IP Route ..) > > Hi Experts, > > > > This is a little odd question but related to one of the > routing issues. > > I have one L3 switch, one Server VLAN, Two ISPs, one is > through VSAT which > is primary link and second one is DSL link. > > VSAT is further connected to outside interface of CISCO Pix Firewall > protecting Web and Email server. > > DSAL is further connected to Microsoft ISA firewall outside > interface, ISA > FW will be use to publish Web and Email servers > > > > I am going to provide availability of Web and Email servers > in case of VSAT > link is down. > > In CISCO Cat 3750 switch I have defined VLAN for Web and > Email servers and > in servers Default Gateway IP I defined the IP address of > VLAN IP address > (SVI IP address) > > in CISCO Cat 3750 > > ip route 0.0.0.0 0.0.0.0 192.168.43.2 > > (192.168.43.2 is the Internal IP of CISCO Pix firewall) > > With this switch configuration VSAT connection is working > fine and I can > access web and email server from outside and inside. > > > > I want to use DSL link for inbound connection only if main > VSAT link is > down, people should be able to access web and Email server > from Internet. > > > > Now, I am going to add DSL connection in my network so, > should I just add > one more > > IP ROUTE entry in my L3 switch like > > ip route 0.0.0.0 0.0.0.0 192.168.43.10 ? > > (192.168.43.10 is the inside IP of Microsoft ISA firewall) > > > > Is this enough to get web and email service availability or > what should I do > more?? > > How can I define two Gateways with different distance, so the > L3 switch > recognize that main VSAT link (CISCO Pix) is down so use the > DSL link(ISA > Server). > > > > I will appreciate all the responses. > > ______________________________________________________________ > _________ > Subscription information may be found at: > http://www.groupstudy.com/list/CCIELab.html > > ______________________________________________________________ > _________ > Subscription information may be found at: > http://www.groupstudy.com/list/CCIELab.html
This archive was generated by hypermail 2.1.4 : Sat Dec 01 2007 - 06:37:29 ART