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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">Hello,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">Our organization uses RANCID for gathering data from our Cisco routers, but we recently faced an issue with a change we’re trying to make.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">We simply want to change what the address that the scripts use to log into the routers. Let’s say in the
</span><span style="font-size:12.0pt;font-family:"Courier New"">routers.db</span><span style="font-size:12.0pt;font-family:"Times New Roman",serif"> file we have:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Courier New"">Router1:cisco:up<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Courier New"">Router2:cisco:up<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Courier New"">Router3:cisco:up<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">We’d like to change it to:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Courier New"">Router1.XYZ:cisco:up<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Courier New"">Router2.XYZ:cisco:up<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Courier New"">Router3.XYZ:cisco:up<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">We didn’t want to change the actual router names in the
</span><span style="font-size:12.0pt;font-family:"Courier New"">routers.db</span><span style="font-size:12.0pt;font-family:"Times New Roman",serif"> file, since this would most likely have other side effects like modifying the CVS. We tried changing
</span><span style="font-size:12.0pt;font-family:"Courier New"">clogin:750(ish) </span>
<span style="font-size:12.0pt;font-family:"Times New Roman",serif">from <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Courier New"">if {[login $router $ruser $userpswd $passwd $enapasswd $cmethod $cyphertype]} {<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">to<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Courier New"">if {[login $router.XYZ $ruser $userpswd $passwd $enapasswd $cmethod $cyphertype]} {<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">However, by watching the tcpdump output, we see that it’s still reaching out to the original address.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">Do you have any ideas that could help us?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">Thanks,</span><span style="font-size:12.0pt;font-family:"Times New Roman",serif"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">Axel Munoz-Persinger<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">Security Analyst<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif"><a href="mailto:Axel.Munoz-Persinger@L3T.com">Axel.Munoz-Persinger@L3T.com</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">(856) 338-4103<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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