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<P>Hi All,</P>
<P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; I'm working through as lab 
scanerio and I trying to understand; in what order does equal cost default 
routes(0.0.0.0/0) get added to the routing table.&nbsp; How is one default route made 
the primary over the other.&nbsp; "sh ip ospf data " and "sh ip ospf data ext" shows 
me the following.&nbsp; Looking at the database it would seem that the advertising 
router with the hightest address wins.&nbsp; This being the case is there a defined 
selection process?</P>
<P><BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
 Type-5 AS External Link States</P>
<P>Link ID&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ADV 
Router&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
Age&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
Seq#&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Checksum 
Tag<BR>0.0.0.0&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 172.16.255.130 
1138&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0x80000BD6 0x5049&nbsp;&nbsp; 
4<BR>0.0.0.0&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 172.116.200.1&nbsp;&nbsp; 
721&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0x800007FD 0x79B1&nbsp;&nbsp; 4</P>
<P><BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; OSPF Router with ID (138.139.255.97) 
(Process ID 3475)</P>
<P><BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
 Type-5 AS External Link States</P>
<P>&nbsp; Routing Bit Set on this LSA<BR>&nbsp; LS age: 1256<BR>&nbsp; Options: (No 
TOS-capability, DC)<BR>&nbsp; LS Type: AS External Link<BR>&nbsp; Link State ID: 
0.0.0.0 (External Network Number )<BR>&nbsp; Advertising Router: 
172.16.255.130<BR>&nbsp; LS Seq Number: 80000BD6<BR>&nbsp; Checksum: 0x5049<BR>&nbsp; 
Length: 36<BR>&nbsp; Network Mask: /0<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
Metric Type: 2 (Larger than any link state 
path)<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; TOS: 0 
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Metric: 1 
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Forward Address: 
0.0.0.0<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; External Route Tag: 4</P>
<P>&nbsp; Routing Bit Set on this LSA<BR>&nbsp; LS age: 838<BR>&nbsp; Options: (No 
TOS-capability, DC)<BR>&nbsp; LS Type: AS External Link<BR>&nbsp; Link State ID: 
0.0.0.0 (External Network Number )<BR>&nbsp; Advertising Router: 
172.18.200.1<BR>&nbsp; LS Seq Number: 800007FD<BR>&nbsp; Checksum: 0x79B1<BR>&nbsp; 
Length: 36<BR>&nbsp; Network Mask: /0<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
Metric Type: 2 (Larger than any link state 
path)<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; TOS: 0 
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Metric: 1 
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Forward Address: 
0.0.0.0<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; External Route Tag: 4</P>
<P>TIA<BR>Nigel</P>
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