cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
6043
Views
0
Helpful
1
Replies

DHCP Request over IPSEC VPN Tunnel on ASA

sansarav720e
Level 1
Level 1

Hi All ,

           I have S2S tunnel  established between Customer HO to our development center , Inside interface of my firewall is connected to an L3 switch , In this L3 switch , I have 2 ,No's of SVI Vlan defined ,Frist VLAN 10 user ll get IP address from local DHCP server connected to L3 switch , another VLAN 20 must need to get IP address from Customer HO DHCP server over VPN tunnel  .

On the L3  switch SVI second VLAN  20 i have helper address configured 10.10.40.10 , so that my DHCP message will be unicast message from this VLAN interface .IP helper address is DHCP server IP address (10.10.40.10) of remote location .

Does IPSec VPN tunnel will pass unicast DHCP message to customer HO DHCP server via IPsec VPN tunnel ???.

how to achieve this DHCP IP assigment over here  ?? if have connected my VLAN 20 directly to ASA  inside interface , i can use DHCP relay configuration . but over here i am sending DHCP message as unicast DHCP message from my l3 switch to firewall inside interface . Does VPN tunnel support for DHCP traffic ?? or VPN tunnel does not support of dhcp traffic .???.

switch (vlan10 , vlan20) ---> ASA----->internet----> ASA----> DHCP server

HTH Regards Santhosh Saravanan
1 Reply 1

r5a5m5
Level 1
Level 1

Please check this post, This will help.

https://supportforums.cisco.com/community/netpro/security/firewall/blog/2011/01/07/asa-pix-dhcp-relay-through-vpn-tunnel

"A good rating is as good or even better than a thank you, remember to rate the helpful posts "
Getting Started

Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: