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Webcast-Catalyst9k
New Member

ios dhcp server - insufficient space for option 161

Hi,

I am having issues with a simple dhcp server configuration where the client sometimes does not receive the location of tftp server (option 161).

Below is the related dhcp debug snippet:

Jun 19 19:13:53.165: DHCPD: client's VPN is .

Jun 19 19:13:53.165: DHCPD: No option 125

Jun 19 19:13:53.165: DHCPD: BOOTREQUEST received from BOOTP client x.x.x.x on interface FastEthernet0/0.

Jun 19 19:13:53.165: DHCPD: Sending BOOTREPLY to BOOTP client x.x.x.x (y.y.y.y).

Jun 19 19:13:53.165: DHCPD: insufficient space for option 161.

Jun 19 19:13:53.165: DHCPD: no option 125

Jun 19 19:13:53.165: DHCPD: broadcasting BOOTREPLY to client x.x.x.x.

Jun 19 19:13:53.165: DHCPD: client's VPN is .

Jun 19 19:13:53.165: DHCPD: No option 125

Jun 19 19:13:53.165: DHCPD: DHCPDISCOVER received from client x.x.x.x on interface FastEthernet0/0.

Jun 19 19:13:53.165: DHCPD: Sending DHCPOFFER to client x.x.x.x  (y.y.y.y).

Jun 19 19:13:53.165: DHCPD: no option 125

Jun 19 19:13:53.165: DHCPD: broadcasting BOOTREPLY to clientx.x.x.xd.ip dhcp pool WYSE

What does 'insufficient space for option 161' mean as well as 'no option 125' in this context?

Thanks

4 REPLIES
Gold

ios dhcp server - insufficient space for option 161

hi,

option 125 is "Vendor option". is this happenes with only ONE specific client?

Hope it Helps!

Soroush.
New Member

Re: ios dhcp server - insufficient space for option 161

happens to some clients, at time of failure DHCP debug returns 'insufficient space for option 161' which I can not find any explanation for

Gold

ios dhcp server - insufficient space for option 161

whats ur equipment? ios ver? could u post a sample of ur dhcp config?

Hope it Helps!

Soroush.
New Member

Re: ios dhcp server - insufficient space for option 161

ip dhcp pool WYSE

network 192.168.118.0 255.255.255.0

default-router 192.168.118.1

domain-name domain.net

dns-server 192.168.1.10

netbios-name-server 192.168.1.11

option 161 ip 192.168.11.11

option 186 ip 192.168.12.12

netbios-node-type h-node

2800 / 12.4(13r)T

in the documentation I can not find any reference to  'insufficient space' message

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