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Cisco Bug: CSCvu43924 - GIADDR of DHCP Discover packet is changed to the ip address of dhcp-network-scope

Last Modified

Sep 17, 2020

Products (1)

  • Cisco ASA 5500-X Series Firewalls

Known Affected Releases

9.14(1.10) 9.8(2.35) 9.8(4.20)

Description (partial)

If packets of DHCP sequence between ASA and DHCP server are dropped, ASA may resend wrong DHCP discover packet to the DHCP server.

AnyConnect client ----- ASA ----- DHCP server

- Using DHCP server for assigning IP address to AnyConnect client.
- Use "dhcp-network-scope" and "link-selection" setting like below:

group-policy xxxxxx attributes
dhcp-network-scope [Scope-IP]
tunnel-group xx.xx.xx.xx type remote-access
tunnel-group xx.xx.xx.xx general-attributes
dhcp-server link-selection [DHCP-srv-IP]
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