使用的是ESP32C3芯片，换过不同厂家的模块，不同的工程，AT指令固件也不能获取到公司路由器IP。之前调了很久都是可以获取到IP，连接其他路由器可以获取到IP。公司路由器
手机电脑都能正常获取到IP正常上网。路由器型号“TL-XDR3230易展版”，路由器日志里有“13days, 00:29:40,DHCPS: Send OFFER with ip 192.168.0.125.”貌似路由器有收到并回应DHCP请求，以下部分日志
- etharp_timer
dhcp_coarse_tmr()
I (506838) BLUFI_EXAMPLE: rssi:-38
I (506838) Protocol: 0x3fcb85e8 fa 00 00 00 00 02 00 11 8c e7 04 1f |............|
I (506838) BLUFI_EXAMPLE: mac:MAC34b4724e30c0
I (507278) WIFI: wait to get IP
etharp_timer
dhcp_coarse_tmr()
I (508278) WIFI: wait to get IP
etharp_timer
dhcp_coarse_tmr()
I (509278) WIFI: wait to get IP
etharp_timer
dhcp_coarse_tmr()
I (510278) WIFI: wait to get IP
etharp_timer
dhcp_coarse_tmr()
I (510738) BLUFI_EXAMPLE: set rssi threshold
dhcp_fine_tmr(): request timeout
dhcp_timeout()
dhcp_timeout(): restarting discovery
dhcp_discover()
dhcp_discover(): dhcp state is DISCOVER
dhcp_select: could not allocate DHCP request
pbuf_alloc(length=308)
pbuf_alloc(length=308) == 0x3fcbf6e4
transaction id xid(99999105)
dhcp_discover: making request
dhcp_discover: sendto(DISCOVER, IP_ADDR_BROADCAST, LWIP_IANA_PORT_DHCP_SERVER)
pbuf_add_header: old 0x3fcbf734 new 0x3fcbf72c (8)
pbuf_add_header: old 0x3fcbf72c new 0x3fcbf718 (20)
ip4_output_if: st1
IP header:
+-------------------------------+
| 4 | 5 | 0x00 | 336 | (v, hl, tos, len)
+-------------------------------+
| 38 |000| 0 | (id, flags, offset)
+-------------------------------+
| 255 | 17 | 0xba77 | (ttl, proto, chksum)
+-------------------------------+
| 0 | 0 | 0 | 0 | (src)
+-------------------------------+
| 255 | 255 | 255 | 255 | (dest)
+-------------------------------+
ip4_output_if: call netif->output()
pbuf_add_header: old 0x3fcbf718 new 0x3fcbf70a (14)
ethernet_output: sending packet 0x3fcbf6e4
dhcp_discover: deleting()ing
pbuf_free(0x3fcbf6e4)
pbuf_free: deallocating 0x3fcbf6e4
dhcp_discover: SELECTING
dhcp_discover(): set request timeout 15000 msecs
I (511278) WIFI: wait to get IP
I (511338) BLUFI_EXAMPLE: rssi:-38
I (511338) Protocol: 0x3fcb85e8 fa 00 00 00 00 02 00 11 8c e7 04 1f |............|
I (511338) BLUFI_EXAMPLE: mac:MAC34b4724e30c0
etharp_timer
dhcp_coarse_tmr()
I (512278) WIFI: wait to get IP
etharp_timer
dhcp_coarse_tmr()
I (513278) WIFI: wait to get IP
etharp_timer
dhcp_coarse_tmr()
I (514278) WIFI: wait to get IP
etharp_timer
dhcp_coarse_tmr()
I (515278) WIFI: wait to get IP
etharp_timer
dhcp_coarse_tmr()
I (515738) BLUFI_EXAMPLE: set rssi threshold
I (515848) BLUFI_EXAMPLE: rssi:-38
I (515848) Protocol: 0x3fcb85e8 fa 00 00 00 00 02 00 11 8c e7 04 1f |............|
I (515848) BLUFI_EXAMPLE: mac:MAC34b4724e30c0
I (516278) WIFI: wait to get IP
