Hello All,
Thought this may be of use for others in the community, this is the list (based on Firmware 7.1.0) of the DHCP Options you can choose from with your router for the internal DHCP server.
Note: There may be some differences on this available list between models and firmware versions.
3. Router
4. Time Servers
7. Log Server
15. DNS Domain Name
17. Root Path
18. Extension Path
40. NIS Domain Name
41. NIS Servers
42. NTP Servers
43. DHCP Option 43
45. NetBIOS over TCP/IP Datagram Distribution Server
48. X Window System Font Servers
49. X Window System Display Manager Servers
64. NIS+ Domain Name
65. NIS+ Servers
66. TFTP Server Name
67. Boot File Name
68. Mobile IP Home Agents
69. Simple Mail Transfer Protocol (SMTP) Server
70. Post Office Protocol 3 (POP3) Server
71. Network News Transport Protocol Server
72. Default World Wide Web Server
73. Default Finger Server
74. Default Internet Relay Chat Server
75. StreetTalk Server
76. StreetTalk Directory Assistance Server
78. DHCP Option 78
79. DHCP Option 79
83. DHCP Option 83
84. DHCP Option 84
85. DHCP Option 85
86. DHCP Option 86
87. DHCP Option 87
88. DHCP Option 88
89. DHCP Option 89
91. DHCP Option 91
92. DHCP Option 92
93. DHCP Option 93
94. DHCP Option 94
95. DHCP Option 95
96. DHCP Option 96
97. DHCP Option 97
98. DHCP Option 98
99. DHCP Option 99
100. DHCP Option 100
101. DHCP Option 101
102. DHCP Option 102
103. DHCP Option 103
104. DHCP Option 104
105. DHCP Option 105
106. DHCP Option 106
107. DHCP Option 107
108. DHCP Option 108
109. DHCP Option 109
110. DHCP Option 110
111. DHCP Option 111
112. DHCP Option 112
113. DHCP Option 113
114. DHCP Option 114
115. DHCP Option 115
116. DHCP Option 116
117. DHCP Option 117
118. DHCP Option 118
119. DHCP Option 119
120. DHCP Option 120
121. DHCP Option 121
122. DHCP Option 122
123. DHCP Option 123
124. DHCP Option 124
125. DHCP Option 125
126. DHCP Option 126
127. DHCP Option 127
128. DHCP Option 128
129. DHCP Option 129
130. DHCP Option 130
131. DHCP Option 131
132. DHCP Option 132
133. DHCP Option 133
134. DHCP Option 134
135. DHCP Option 135
136. DHCP Option 136
137. DHCP Option 137
138. CAPWAP Access Controller addresses
139. DHCP Option 139
140. DHCP Option 140
141. DHCP Option 141
142. DHCP Option 142
143. DHCP Option 143
144. DHCP Option 144
145. DHCP Option 145
146. DHCP Option 146
147. DHCP Option 147
148. DHCP Option 148
149. DHCP Option 149
150. DHCP Option 150
151. DHCP Option 151
152. DHCP Option 152
153. DHCP Option 153
154. DHCP Option 154
155. DHCP Option 155
156. dhcp-state
157. DHCP Option 157
158. DHCP Option 158
159. DHCP Option 159
160. DHCP Option 160
161. DHCP Option 161
162. DHCP Option 162
163. DHCP Option 163
164. DHCP Option 164
165. DHCP Option 165
166. DHCP Option 166
167. DHCP Option 167
168. DHCP Option 168
169. DHCP Option 169
170. DHCP Option 170
171. DHCP Option 171
172. DHCP Option 172
173. DHCP Option 173
174. DHCP Option 174
175. DHCP Option 175
176. DHCP Option 176
177. DHCP Option 177
178. DHCP Option 178
179. DHCP Option 179
180. DHCP Option 180
181. DHCP Option 181
182. DHCP Option 182
183. DHCP Option 183
184. DHCP Option 184
185. DHCP Option 185
186. DHCP Option 186
187. DHCP Option 187
188. DHCP Option 188
189. DHCP Option 189
190. DHCP Option 190
191. DHCP Option 191
192. DHCP Option 192
193. DHCP Option 193
194. DHCP Option 194
195. DHCP Option 195
196. DHCP Option 196
197. DHCP Option 197
198. DHCP Option 198
199. DHCP Option 199
200. DHCP Option 200
201. DHCP Option 201
202. DHCP Option 202
203. DHCP Option 203
204. DHCP Option 204
205. DHCP Option 205
206. DHCP Option 206
207. DHCP Option 207
208. DHCP Option 208
209. DHCP Option 209
210. DHCP Option 210
211. DHCP Option 211
212. DHCP Option 212
213. DHCP Option 213
214. DHCP Option 214
215. DHCP Option 215
216. DHCP Option 216
217. DHCP Option 217
218. DHCP Option 218
219. DHCP Option 219
220. DHCP Option 220
221. DHCP Option 221
222. DHCP Option 222
223. DHCP Option 223
224. DHCP Option 224
225. DHCP Option 225
226. DHCP Option 226
227. DHCP Option 227
228. DHCP Option 228
229. DHCP Option 229
230. DHCP Option 230
231. DHCP Option 231
232. DHCP Option 232
233. DHCP Option 233
234. DHCP Option 234
235. DHCP Option 235
236. DHCP Option 236
237. DHCP Option 237
238. DHCP Option 238
239. DHCP Option 239
240. DHCP Option 240
241. DHCP Option 241
242. DHCP Option 242
243. DHCP Option 243
244. DHCP Option 244
245. DHCP Option 245
246. DHCP Option 246
247. DHCP Option 247
248. DHCP Option 248
249. DHCP Option 249
250. DHCP Option 250
251. DHCP Option 251
252. DHCP Option 252
253. DHCP Option 253
254. DHCP Option 254
You can explore more about these DHCP Options and there uses at Dynamic Host Configuration Protocol - Wikipedia
Happy to Help,
Marcus