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21.1 Legacy Series / dhclient ignoring offers
« on: June 15, 2021, 10:28:07 pm »
I'm having trouble getting DHCP to work on WAN.
I have an AT&T fiber connection typically connected via a BGW210-700. Cert extraction, wpa_supplicant, etc all works just fine. DHCP does not.
Here is output from system log view on the portal:
I ran tcpdump on the WAN interface and see offers coming back (uniquely identifiable information is replaced with 'x's):
I'm at my wits end with this. I can even get DHCP6 to work, but not DHCP4 so I doubt it's the link.
I have an AT&T fiber connection typically connected via a BGW210-700. Cert extraction, wpa_supplicant, etc all works just fine. DHCP does not.
Here is output from system log view on the portal:
Code: [Select]
2021-06-15T16:01:25 dhclient[96673] Starting delete_old_states()
2021-06-15T16:01:25 dhclient[8410] No working leases in persistent database - sleeping.
2021-06-15T16:01:25 dhclient[8410] No DHCPOFFERS received.
2021-06-15T16:01:06 dhclient[8410] DHCPDISCOVER on bxe0 to 255.255.255.255 port 67 interval 19
2021-06-15T16:00:47 dhclient[8410] DHCPDISCOVER on bxe0 to 255.255.255.255 port 67 interval 19
2021-06-15T16:00:30 dhclient[8410] DHCPDISCOVER on bxe0 to 255.255.255.255 port 67 interval 17
2021-06-15T16:00:24 dhclient[8410] DHCPDISCOVER on bxe0 to 255.255.255.255 port 67 interval 6
2021-06-15T16:00:24 dhclient[93706] Starting delete_old_states()I ran tcpdump on the WAN interface and see offers coming back (uniquely identifiable information is replaced with 'x's):
Code: [Select]
16:00:30.312209 IP (tos 0xc0, ttl 64, id 20041, offset 0, flags [none], proto UDP (17), length 331)
x.x.x.x.bootps > x.x.x.x.bootpc: [udp sum ok] BOOTP/DHCP, Reply, length 303, xid 0xxxxxxxxx, Flags [none] (0x0000)
Your-IP x.x.x.x
Server-IP x.x.x.x
Gateway-IP x.x.x.x
Client-Ethernet-Address xx:xx:xx:xx:xx:xx (oui Unknown)
Vendor-rfc1048 Extensions
Magic Cookie 0x63825363
DHCP-Message Option 53, length 1: Offer
Server-ID Option 54, length 4: x.x.x.x
Lease-Time Option 51, length 4: 3600
Subnet-Mask Option 1, length 4: 255.255.254.0
BR Option 28, length 4: x.x.x.x
Default-Gateway Option 3, length 4: x.x.x.x
Domain-Name-Server Option 6, length 8: x.x.x.x,x.x.x.x
Client-ID Option 61, length 7: ether xx:xx:xx:xx:xx:xx
Hostname Option 12, length 8: "OPNsense"
16:00:47.656117 IP (tos 0x10, ttl 128, id 0, offset 0, flags [none], proto UDP (17), length 328)
0.0.0.0.bootpc > 255.255.255.255.bootps: [udp sum ok] BOOTP/DHCP, Request from xx:xx:xx:xx:xx:xx (oui Unknown), length 300, xid 0xxxxxxxxx, secs 23, Flags [none] (0x0000)
Client-Ethernet-Address xx:xx:xx:xx:xx:xx (oui Unknown)
Vendor-rfc1048 Extensions
Magic Cookie 0x63825363
DHCP-Message Option 53, length 1: Discover
Requested-IP Option 50, length 4: 136.55.173.54
Client-ID Option 61, length 7: ether xx:xx:xx:xx:xx:xx
Hostname Option 12, length 8: "OPNsense"
Parameter-Request Option 55, length 10:
Subnet-Mask, BR, Time-Zone, Classless-Static-Route
Default-Gateway, Domain-Name, Domain-Name-Server, Hostname
Option 119, MTU
16:00:47.681437 IP (tos 0xc0, ttl 64, id 21322, offset 0, flags [none], proto UDP (17), length 331)
x.x.x.x.bootps > x.x.x.x.bootpc: [udp sum ok] BOOTP/DHCP, Reply, length 303, xid 0xxxxxxxxx, Flags [none] (0x0000)
Your-IP x.x.x.x
Server-IP x.x.x.x
Gateway-IP x.x.x.x
Client-Ethernet-Address xx:xx:xx:xx:xx:xx (oui Unknown)
Vendor-rfc1048 Extensions
Magic Cookie 0x63825363
DHCP-Message Option 53, length 1: Offer
Server-ID Option 54, length 4: x.x.x.x
Lease-Time Option 51, length 4: 3600
Subnet-Mask Option 1, length 4: 255.255.254.0
BR Option 28, length 4: x.x.x.x
Default-Gateway Option 3, length 4: x.x.x.x
Domain-Name-Server Option 6, length 8: x.x.x.x,x.x.x.x
Client-ID Option 61, length 7: ether xx:xx:xx:xx:xx:xx
Hostname Option 12, length 8: "OPNsense"
16:01:06.836082 IP (tos 0x10, ttl 128, id 0, offset 0, flags [none], proto UDP (17), length 328)
0.0.0.0.bootpc > 255.255.255.255.bootps: [udp sum ok] BOOTP/DHCP, Request from xx:xx:xx:xx:xx:xx (oui Unknown), length 300, xid 0xxxxxxxxx, secs 42, Flags [none] (0x0000)
Client-Ethernet-Address xx:xx:xx:xx:xx:xx (oui Unknown)
Vendor-rfc1048 Extensions
Magic Cookie 0x63825363
DHCP-Message Option 53, length 1: Discover
Requested-IP Option 50, length 4: 136.55.173.54
Client-ID Option 61, length 7: ether xx:xx:xx:xx:xx:xx
Hostname Option 12, length 8: "OPNsense"
Parameter-Request Option 55, length 10:
Subnet-Mask, BR, Time-Zone, Classless-Static-Route
Default-Gateway, Domain-Name, Domain-Name-Server, Hostname
Option 119, MTU
16:01:06.860762 IP (tos 0xc0, ttl 64, id 22595, offset 0, flags [none], proto UDP (17), length 331)
x.x.x.x.bootps > x.x.x.x.bootpc: [udp sum ok] BOOTP/DHCP, Reply, length 303, xid 0xxxxxxxxx, Flags [none] (0x0000)
Your-IP x.x.x.x
Server-IP x.x.x.x
Gateway-IP x.x.x.x
Client-Ethernet-Address xx:xx:xx:xx:xx:xx (oui Unknown)
Vendor-rfc1048 Extensions
Magic Cookie 0x63825363
DHCP-Message Option 53, length 1: Offer
Server-ID Option 54, length 4: x.x.x.x
Lease-Time Option 51, length 4: 3600
Subnet-Mask Option 1, length 4: 255.255.254.0
BR Option 28, length 4: x.x.x.x
Default-Gateway Option 3, length 4: x.x.x.x
Domain-Name-Server Option 6, length 8: x.x.x.x,x.x.x.x
Client-ID Option 61, length 7: ether xx:xx:xx:xx:xx:xx
Hostname Option 12, length 8: "OPNsense"
I'm at my wits end with this. I can even get DHCP6 to work, but not DHCP4 so I doubt it's the link.