I wish you well in this endeavor, Richard. I am trying to do basically the same thing. I want to use static DSL as a backup to a T-1 (mainly to maintain connectivity to/from our mail server), and I keep bumping into the issue of the default gateway.
I think we'll end up using a script to test connectivity to various hosts as was discussed in the Detecting Disconnected Network thread. Perhaps we can figure it out together... > -----Original Message----- > From: Richard Amerman [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, June 11, 2002 2:43 PM > To: [EMAIL PROTECTED] > Subject: [leaf-user] Bering DSL + modem failover - default route > > > As some of you may have noted I am working on a Bering > configuration with a main external interface at eth0 of a DSL > router and an additional external connection consisting of an > external modem for redundant failover. > > I have had no problem getting the modem to work and it looks > like the firewall portion may not be too bad (knock on wood!) > but I can't seem to get past the existing defaultroute. > > How does one change the defaultroute on the fly? I have my > pppd setup configured to set the ppp connection as the defaultroute. > > pppd logs the following message: > "not replacing existing default route to eth0" > > The only other negative sounding message is the following: > > "Cannot determine Ethernet address for proxy ARP" > > I also experimented with settings in the interfaces config > file in the "ppp0" interface section. The default is > auto ppp0 > iface ppp0 inet ppp > provider provider > > I changed this to : > auto ppp0 > iface ppp0 inet ppp > Address xxx.xxx.xxx.xxx > Masklen 27 > Gateway xxx.xxx.xxx.xxx > > I'm not sure this is appropriate but I could not find further > documentation on this file to indicate whether I can use > these settings with a ppp interface, and even if I can, that > it is appropriate. > > I also added a local:remote entry to the ppp options file and > tried the -ip setting to force the use of these settings but > the ppp connection was dropped with a message from the ISP to > the effect of "No network protocol running". > > Any ideas? > > I'm also working on a script to monitor the DSL connection > and bring up the modem connection if it is determined as > down. When the DSL connection was restored for a given > period of time then the modem would be disconnected. This > setup also depends on a secondary MX record pointing to the > static ip for the modem connection so mail will still get through. > > I am definitely working to set this up in the most ideal > manor as It seems like this configuration would be useful to > contribute. > > Richard > > > > 2mh?*'ejz' y?.r?.m4?m(??Z?rq^??ox%ey???lqzm??X?( ~zw? > Xb???oI@Bmy?r?+no?hshrfj? ?|?Xm > _______________________________________________________________ Multimillion Dollar Computer Inventory Live Webcast Auctions Thru Aug. 2002 - http://www.cowanalexander.com/calendar ------------------------------------------------------------------------ leaf-user mailing list: [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/leaf-user SR FAQ: http://leaf-project.org/pub/doc/docmanager/docid_1891.html
