dear darren, i do not know about the Linksys BEFW11S4 routers but i (and others) have head good experiences with the followin (wlan) routers, flashed with openwrt or dd-wrt, which basically is linux with admin interfaces.
- linksys wrt64gl - Buffalo WHR-G54S or WHR-HP-G54 - Asus WL-HDD or WL-500gP i guess that there will be other routers without wlan functionallity working with openwrt and dd-wrt too, but i only got to know those stated above. as they are running on linux 2.4.30 or so and include iptables, iproute, etc. they should be a good choice for your environment. cheers, raoul On Sun, 14 Oct 2007 15:26:47 -0700, Darren Hoch <[EMAIL PROTECTED]> wrote: > Hello List, > > Short question: > > Can any of you recommend a commodity (Linksys, Netgear, etc) with > reliable port forwarding (ARP cache updating) that supports heartbeat > failovers? > > Long question: > > I have a standard 2 node Heartbeat 2.1.2/DRBD (v1, not CRM) cluster > running behind a Linksys BEFW11S4 router. It is not my equipment choice > by any means, but it is what I was tasked to work with. I am used to > working with much more expensive networking equipment that seems to > adhere to RFCs. The two nodes (ha1/ha2) have static private addresses > (10.1.1.3/4) with a shared IP of 10.1.1.5 in the haresources. The > Linksys is configured with a static public IP address and has port > forwarding enabled for ports 80 and 25 to 10.1.1.5. > > The cluster setup works flawlessly (as usual). I can access the ha1 web > server via the Internet using port forwarding on the linksys router. > What I noticed is that when I conduct a failover with hb_standby , the > website is unavailable. I have confirmed the following: > > 1) The ha2 node has successfully acquired all the resources (DRBD > filesystem, IP and start httpd). > 2) I can access the website on the shared IP from another web browser on > another host via the 10.1.1.X network, confirming the failover. > 3) When I fail back to ha1, the website is available again from the > outside world. > 4) I have the latest firmware on the router (as of yesterday). > > This leads me to believe that the Linksys is not updating its ARP > cache/Port forwarder on failover with the ha2 MAC address for 10.1.1.5. > I have confirmed that Heartbeat is sending the ARP on ha2 in the ha-debug: > > IPaddr[3525]: 2007/10/14_16:57:24 DEBUG: Sending Gratuitous Arp for > 10.1.1.5 on eth0:0 [eth0] > > I can also confirm via tcpdump (there were multiple ARP packets): > > 17:16:19.125292 arp who-has 10.1.1.5 tell 10.1.1.5 > 17:16:19.377485 arp reply 10.1.1.5 is-at 00:90:27:f6:0e:d8 (oui Unknown) > > <snip> > > And confirmed the MAC on ha2: > > # ifconfig eth0:0 > eth0:0 Link encap:Ethernet HWaddr 00:90:27:F6:0E:D8 > inet addr:10.1.1.5 Bcast:10.1.1.255 Mask:255.255.255.0 > > Unless I am missing something here, I assume I need a more intelligent > router. The catch is that it has to be a commodity one (under $100). > > Thanks, > > Darren > > > > _______________________________________________ > Linux-HA mailing list > [email protected] > http://lists.linux-ha.org/mailman/listinfo/linux-ha > See also: http://linux-ha.org/ReportingProblems -- ____________________________________________________________________ DI (FH) Raoul Bhatia M.Sc. email. [EMAIL PROTECTED] Technischer Leiter IPAX - Aloy Bhatia Hava OEG web. http://www.ipax.at Barawitzkagasse 10/2/2/11 email. [EMAIL PROTECTED] 1190 Wien tel. +43 1 3670030 FN 277995t HG Wien fax. +43 1 3670030 15 ____________________________________________________________________ _______________________________________________ Linux-HA mailing list [email protected] http://lists.linux-ha.org/mailman/listinfo/linux-ha See also: http://linux-ha.org/ReportingProblems
