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<font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif">T</font>he route is installed in the FIB if
the router has a route to the gateway itself (e.g. via a connected
interface in up/up status, or recursively via IGP etc)<br>
<br>
ARP/ping reachability verification is used unless you tell it to
(on Cisco via "ip sla" -
<a class="moz-txt-link-freetext" href="http://www.firewall.cx/cisco-technical-knowledgebase/cisco-routers/813-cisco-router-ipsla-basic.html">http://www.firewall.cx/cisco-technical-knowledgebase/cisco-routers/813-cisco-router-ipsla-basic.html</a>)<br>
<br>
CB<br>
<br>
</font>
<div class="moz-cite-prefix">On 05/05/14 15:58, Alex Samad -
Yieldbroker wrote:<br>
</div>
<blockquote
cite="mid:A3FB5D9FD28C50429DF7692DC31054E606DBD8E2@DC1INTADCW8201.yieldbroker.com"
type="cite">
<pre wrap="">Hi
I am looking for some documentation that explains the way cisco behaves.
If I have this
IOS
ip route 0.0.0.0 0.0.0.0 w.x.y.z 230
ip route 0.0.0.0 0.0.0.0 f.g.h.i 240
ip route 0.0.0.0 0.0.0.0 r.s.t.u 250
ASA
route internet 0.0.0.0 0.0.0.0 w.x.y.z 230
route internet 0.0.0.0 0.0.0.0 f.g.h.i 240
route internet 0.0.0.0 0.0.0.0 r.s.t.u 250
this tells me the default gateway used is w.x.y.z, unless that gateway is unavailable or dead..
I am looking at how Cisco decides when a gateway is dead, I found documents on route selection, but nothing that specifically address dead gateways
I presume, and from what I have seen if there is no arp its dead..
Thanks
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</blockquote>
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