PPPoE on VLAN sub-interface - ASA 5506 - Doesn't Work

Hi All,

Trying to turn up a new circuit that uses PPPoE. It's an ASA 5506 to the ISP's ONT box. The LAN side of the ONT uses VLAN 200, so they require that the port on the 5506 also be tagged to vlan 200, which is done by doing sub-interfaces since 5506 uses layer 3 ports. I've set up below configs, but no luck. What follows is the debug logs. ISP says the issue is on my end, but I don't see any fault. Any ideas?

Here's what I've tried:

Delete and rebuild PPPoE configs

Reload ASA

Tried to assign the IP via ip address pppoe setroute instead of specifying the IP

Tried to set it up on a layer 3 port without subinterfacing.

Had ISP confirm username, password, IP and authentication method are correct.

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Configs:

interface GigabitEthernet1/1.200

vlan 200

nameif outside

security-level 0

pppoe client vpdn group WALVISBAY

ip address 197.xxx.xxx.63 255.255.255.255 pppoe setroute

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vpdn group WALVISBAY request dialout pppoe

vpdn group WALVISBAY localname [xxxxxxx@s](mailto:xxxxxxx@static.telecom.na)tatic.xxxxxxx.xx

vpdn group WALVISBAY ppp authentication pap

vpdn username [xxxxxxx@static.xxxxxxx.xx](mailto:xxxxxxx@static.xxxxxxx.xx) password xxxxxxx

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Debug Logs:

PPPoE: PPPoE:(Rcv) Dest:084f.a93d.e0db Src:6cb2.aec6.bed5 Type:0x8863=PPPoE-Discovery

PPPoE: Ver:1 Type:1 Code:65=PADS Sess:20765 Len:51

PPPoE: Type:0101:SVCNAME-Service Name Len:0

PPPoE: Type:0103:HOSTUNIQ-Host Unique Tag Len:4

PPPoE: 00000001

PPPoE: Type:0102:ACNAME-AC Name Len:15

PPPoE: SWK-1006-BRAS01

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PPPoE: Type:0104:ACCOOKIE-AC Cookie Len:16

PPPoE: 6B6ED47C

PPPoE: 3EBE819E

PPPoE: ADD82AB3

PPPoE: 5D0B970E

PPPoE:

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PPPoE: PADS

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PPPoE: IN PADS from PPPoE tunnel

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PPPoE: Opening PPP link and starting negotiations.

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PPPoE: PPPoE:(Rcv) Dest:084f.a93d.e0db Src:6cb2.aec6.bed5 Type:0x8863=PPPoE-Discovery

PPPoE: Ver:1 Type:1 Code:A7=PADT Sess:20765 Len:0

PPPoE: PADT

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PPPoE: Shutting down client session