Ubuntu DHCP Server not Leasing to remote vpn network

Hi all,

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I have a dhcp server that sits behind an ASA that is used for ipsec l2l. However, I am unable to:

1. Ping the server from the other remote site
2. it does not lease ip addresses to the remote site using the IP helper config on the remote switch

Any idea why this would be the case?

Do I need to open up ports on the asa for dhcp traffic to traverse?