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<div>hi,</div>
<div> </div>
<div>i try to find the right format for a dhcp-match for an option 175 with encapsualted option 235 with a specific value.</div>
<div>in wireshark the specific byte sequence of the encapsulated option 235 of option 175 looks like:</div>
<div>0xEB 0x03 0x01 0x15 0x01</div>
<div>the 1'st byte is the encap option value (235 = ipxe.version),</div>
<div>the 2'nd byte is the lengs of the encapsulated value (3 bytes),</div>
<div>the 3'rd, 4'th and 5'th byte is the version value (major, minor, revision)</div>
<div> </div>
<div>i tried several combinations like:</div>
<div>dhcp-match=set:ipxe.version_1_21_1, 175, 235, 1b, 21b ,1b</div>
<div>dhcp-match=set:ipxe.version_1_21_1, 175, 235, 01:15:01</div>
<div> </div>
<div>or for an other option 175 with encap option 16, the byte sequence looke like:</div>
<div>0x10 0x01 0x02</div>
<div> </div>
<div>here i need a match for the value 02</div>
<div> </div>
<div>but none of them seems to work.</div>
<div>i did not find a example in the man page, nor in the example dnsmasq.conf file nor in the FAQ.</div>
<div> </div>
<div>i am only able to get match for if an encap option is set or not:</div>
<div>
<div>dhcp-match=set:ipxe.pxeext, 175, 16<br/>
dhcp-match=set:ipxe.iscsi, 175, 17<br/>
dhcp-match=set:ipxe.aoe, 175, 18<br/>
dhcp-match=set:ipxe.http, 175, 19</div>
<div>...</div>
<div> </div>
<div> </div>
<div>but not for a match for a specific value like for a specific ipxe.version or a specific ipxe.pxeext value.</div>
<div> </div>
<div>can somebody give me the right dhcp-match syntax for my requirements?</div>
<div> </div>
<div>thanks in advance.</div>
</div>
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