Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

ACL dont allow dhcp

Hello sir, how are you?

I have 2 vlans over one port mode access, follow example of acl:

permit ip 10.1.1.0 0.0.0.255 10.1.1.1 0.0.0.0

permit ip 192.168.7.0 0.0.0.255 192.168.7.0 0.0.0.255

I wish to get dhcp but I dont receive request.

Every time i get APIPA address of windows.

How can I able dhcp request and server talk over this acl ?

The ip of dhcp sv is 192.168.7.1

Thanks so much!

2 REPLIES
VIP Purple

Re: ACL dont allow dhcp

1) you need to allow the dhcp-traffic in the ACL. Most easy is to restrict only on the ports, but it could be defined more granular:

permit udp any eq bootpc any eq bootps

And you need to send the DHCP-packets to the server:

interface vlan X

  ip helper-address 192.168.7.1

-- 
Don't stop after you've improved your network! Improve the world by lending money to the working poor:
http://www.kiva.org/invitedby/karsteni


--
Don't stop after you've improved your network! Improve the world by lending money to the working poor: http://www.kiva.org/invitedby/karsteni

Re: ACL dont allow dhcp

Hi,

If you're getting an APIPA address that would mean your PC has limited or no network connectivity.

Check Layer 1 and try to ping 192.168.7.1.

Sent from Cisco Technical Support iPhone App

190
Views
0
Helpful
2
Replies
CreatePlease login to create content