Hi all, finally resolved the 1st problem (cannot detect newly inserted web machine): end up it was a changed in config in the firewall that caused the situation... my guys changed it without informing me but still, many apologies for the false alarm. My bad.
secondly though, the problem still stands. when i plug out the network cables from the router, and insert back in, everything fails.. the router will fail to route. I will need to reset the server for it to work again. For now, we are waiting for a new box to arrive before using VC2.2 and hopefully that resolves the issues, but wonder if it is a bug.. or a badly configure option somewhere? is this the arp cache you are talking about? router:~# arp Address HWtype HWaddress Flags Mask Iface <gateway ip> ether 00:0C:DB:2B:AB:68 C eth0 192.168.3.1 ether 00:1B:0C:30:B4:80 C eth1 Thanks for your patience guys :) Daren -----Original Message----- From: Robert Bays [mailto:[EMAIL PROTECTED] Sent: Monday, January 28, 2008 9:32 AM To: Daren Tay Cc: Justin Fletcher; Vyatta-users@mailman.vyatta.com Subject: Re: [Vyatta-users] Weird Routing problem on VC2 Daren, Sounds like the router still can't find the new host. What does you arp cache say for 192.168.1.13 after you try to ping it? What does your routing table look like? cheers, robert. Daren Tay wrote: > Nope, it was 'pingable' before. > I can still ping the other web servers connected to it... but the newly > added one I can't. > Yet I am able to route out to the public network from the new box... > > -----Original Message----- > From: Justin Fletcher [mailto:[EMAIL PROTECTED] > Sent: Friday, January 25, 2008 3:16 PM > To: Daren Tay > Cc: Vyatta-users@mailman.vyatta.com > Subject: Re: [Vyatta-users] Weird Routing problem on VC2 > > > Does the load balancer have ICMP disabled? That'd certainly explain > that, unless > you were able to ping it before -- > > Since you have the load balancer between the router, I suspect it's a > load balancer issue. > > You can see what's going on by running tshark/tcpdump on the interface, and > see > what's on the wire. If you can examine the traffic between the load > balancer and the > servers, you'll learn more :-) > > Justin > > On Jan 24, 2008 10:40 PM, Daren Tay <[EMAIL PROTECTED]> wrote: >> Hi guys, >> >> anyone? >> >> Thanks, >> Daren >> >> >> -----Original Message----- >> From: [EMAIL PROTECTED] >> [mailto:[EMAIL PROTECTED] Behalf Of Daren Tay >> Sent: Wednesday, January 23, 2008 6:29 PM >> To: Vyatta-users@mailman.vyatta.com >> Subject: [Vyatta-users] Weird Routing problem on VC2 >> >> >> Hi guys >> >> I have this queer problem. >> >> My setup with Vyatta is like this >> >> >> Internet --- Firewall --- Vyatta Router --- Load Balancer ---- 03 x Web >> Servers >> | >> | >> staging server >> >> >> As you can see, the router seats in front of the load balancer. >> First... generally whenever I plug out the network cable from the router, >> and insert it back later, everything will fail to route. >> Its as if the route table cannot get the new info on its own.. I have to >> reset the box to get back the settings. >> >> secondly, I just add another webserver to the cluster (3rd one). >> Interestingly, after adding it, I can't ping the new server nor ssh it > from >> the router. In fact, from the router, I can't ping the load balancer. But > I >> can ping the existing 2 web servers perfectly. The entire website is still >> running. >> >> I suspect its something to do with the routing ... is there any bug with > VC2 >> on this? >> >> Would appreciate some pointers :) >> Many thanks! >> Daren >> >> _______________________________________________ >> Vyatta-users mailing list >> Vyatta-users@mailman.vyatta.com >> http://mailman.vyatta.com/mailman/listinfo/vyatta-users >> >> _______________________________________________ >> Vyatta-users mailing list >> Vyatta-users@mailman.vyatta.com >> http://mailman.vyatta.com/mailman/listinfo/vyatta-users >> > > > _______________________________________________ > Vyatta-users mailing list > Vyatta-users@mailman.vyatta.com > http://mailman.vyatta.com/mailman/listinfo/vyatta-users _______________________________________________ Vyatta-users mailing list Vyatta-users@mailman.vyatta.com http://mailman.vyatta.com/mailman/listinfo/vyatta-users
