Correction - to ping Switch C on vlan provider not transport.<br><br><div class="gmail_quote">On Fri, Jul 20, 2012 at 11:16 AM, root net <span dir="ltr"><<a href="mailto:rootnet08@gmail.com" target="_blank">rootnet08@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">The secondary IP is only configured because it's the /30 between the provider and that BGP peering router.<br><br>interface Port-channel1.2<br>
description transport vlan<br> encapsulation dot1Q 2<br> ip address 192.168.0.1 255.255.255.224<br>
<br>interface Port-channel1.3<br> description provider vlan<br>
encapsulation dot1Q 3<br>
ip address 192.168.1.1 255.255.255.252 secondary<br>
ip address 172.16.0.2 255.255.255.252<br><br>One thing I forgot to mention is that VLAN transport is a L3 VLAN. This was really only to ping Switch C on VLAN transport.<div class="HOEnZb"><div class="h5"><br><br><br><div class="gmail_quote">
On Fri, Jul 20, 2012 at 3:12 AM, Robert Lister <span dir="ltr"><<a href="mailto:robl@lentil.org" target="_blank">robl@lentil.org</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div bgcolor="#FFFFFF"><div><div><br></div><div>Config snippets may help to work this out.</div><div><br></div><div>By 'secondary IP' how is this configured on the cisco, and why?</div>
<div><br></div><div>Rob<span><font color="#888888"><br><br>-- <div>Robert Lister</div></font></span></div><div><br><br></div><blockquote type="cite"><div><div>Provider assigned a /30 say <a href="http://172.16.0.0/30" target="_blank">172.16.0.0/30</a> -> his IP is say <a href="http://172.16.0.1/30" target="_blank">172.16.0.1/30</a><br>
Switch A is not assigned an IP on the /27. This switch is simple all L2 (tagged/untagged or trunk/access ports)<br>Switch B is assigned an IP from a /27 say <a href="http://192.168.0.4/27" target="_blank">192.168.0.4/27</a><br>
Switch C is assigned an IP from a /27 say <a href="http://192.168.0.2/27" target="_blank">192.168.0.2/27</a><br>
Main Router is assigned an IP from a /27 say <a href="http://192.168.0.1/27" target="_blank">192.168.0.1/27</a> and the secondary IP is <a href="http://172.16.0.2/30" target="_blank">172.16.0.2/30</a><br><br><br></div><div>
sh iparp<br>Destination Mac Age Static VLAN [VID] Port<br>192.168.0.1 mac-address-here 0 NO vlan-name-here [0002] 1<br> Dynamic Entries: 1 Static Entries: 0<br>
Pending Entries: 0<br> Out Request: 16 Out Response: 11<br> In Request: 1875 In Response: 19<br> Proxy Answered: 0<br> Rx Error: 0 Dup IP Addr: 0<br>
Rejected count: 480 Rejected IP: 172.16.0.2<br> Rejected Port: 1 Rejected I/F: transport<br></div></div></blockquote></div><div></div></div></blockquote></div><br>
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