Dhcp

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  • dhcpdump
dhcpdump -i eth0

<syntaxhighlight lang=bash >

 TIME: 2012-02-27 20:45:20.211
   IP: 0.0.0.0 (0:25:90:3d:cc:71) > 255.255.255.255 (ff:ff:ff:ff:ff:ff)
   OP: 1 (BOOTPREQUEST)
HTYPE: 1 (Ethernet)
 HLEN: 6
 HOPS: 0
  XID: 63276b24
 SECS: 0
FLAGS: 0

CIADDR: 0.0.0.0 YIADDR: 0.0.0.0 SIADDR: 0.0.0.0 GIADDR: 0.0.0.0 CHADDR: 00:25:90:3d:cc:71:00:00:00:00:00:00:00:00:00:00

SNAME: .
FNAME: .

OPTION: 53 ( 1) DHCP message type 1 (DHCPDISCOVER) OPTION: 61 ( 7) Client-identifier 01:00:25:90:3d:cc:71 OPTION: 60 ( 12) Vendor class identifier udhcp 1.12.0 OPTION: 57 ( 2) Maximum DHCP message size 576 OPTION: 55 ( 7) Parameter Request List 1 (Subnet mask)

                                             3 (Routers)
                                             6 (DNS server)
                                            12 (Host name)
                                            15 (Domainname)
                                            28 (Broadcast address)
                                            42 (NTP servers)
                                           

</syntaxhighlight>

push route

https://forum.pfsense.org/index.php?topic=74903.0

  • using option 121
08:0a:ac:10:0a:7e:0c:ac:10:ac:10:0a:7e:10:c0:a8:ac:10:0a:7e
10.0.0.0/8 via  172.16.10.126
172.16.0.0/12 via 172.16.10.126
192.168.0.0/16 via 172.16.10.126