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Option 150 is in the enterprise specific range for dhcp options.<br>
for redundancy simply make option 150 be an array of ip addresses.<br>
<br>
otherwise, use dns CiscoCM1:<br>
<a class="moz-txt-link-freetext" href="http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/admin/7_0_1/ccmsys/a02tftp.html#wp1023004">http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/admin/7_0_1/ccmsys/a02tftp.html#wp1023004</a><br>
<br>
/Wes<br>
<br>
On Tuesday, November 18, 2008 10:00:55 PM, FrogOnDSCP46EF
<a class="moz-txt-link-rfc2396E" href="mailto:ciscoboy2006@gmail.com"><ciscoboy2006@gmail.com></a> wrote:<br>
<blockquote
cite="mid:92ed69a80811181900w657e7256l2c7fd845e641b21c@mail.gmail.com"
type="cite">Have anyone tried DNS server instead of Array to achieve
redundancy?<br>
<br>
Let's say we've 2 x TFTP server for redundancy purpose.<br>
TFTP1 - <a moz-do-not-send="true" href="http://1.1.1.1">1.1.1.1</a><br>
TFTP2- <a moz-do-not-send="true" href="http://1.1.1.2">1.1.1.2</a><br>
<br>
normally TFTP redundancy is achieved by creating Array in DHCP. Put
both TFTP server ip address in the DHCP.<br>
array: <a moz-do-not-send="true" href="http://10.1.1.1">10.1.1.1</a> <a
moz-do-not-send="true" href="http://10.1.1.2">10.1.1.2</a><br>
<br>
Instead of putting those IP address in the array in DHCP config can I
put one DNS like name?<br>
<br>
Array: tftp1tftp2 or <a moz-do-not-send="true"
href="http://tftp.cisco.com">tftp.cisco.com</a><br>
In DNS - <a moz-do-not-send="true" href="http://tftp.cisco.com">tftp.cisco.com</a>
has 2 hosts associated to it e.g. <a moz-do-not-send="true"
href="http://10.1.1.1">10.1.1.1</a> and 10.1.1.2-- <br>
<br>
The DHCP RFC tells that ICMP is the one which finds out TFTPS erver's
subnet but no mention about DNS address for option 150.<br>
<br>
<br>
Smile, you'll save someone else's day!<br>
Frog<br>
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</blockquote>
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