Help Address Question

Answered Question
Jul 9th, 2009

Sorry, but I dont have access to my lab.

What source address does an interface use when sending a DHCP unicast to a DHCP server?

int gi1/1

ip address 10.10.10.1 255.255.255.0

ip helper-address 4.4.4.4

Whats the source address of the DHCP unicast?

What about if I had a secondary address?

int gi 1/1

ip address 20.20.20.1 255.255.255.0 secondary

ip address 10.10.10.1 255.255.255.0

ip helper-address 4.4.4.4

Thanks

Victor

I have this problem too.
0 votes
Correct Answer by Jon Marshall about 7 years 6 months ago

Victor

Had a few spare minutes :-)

It uses the primary address of the interface ie. in your example 10.10.10.1

With a secondary address it still uses the primary address of the interface ie. 10.10.10.1

Jon

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John Blakley Thu, 07/09/2009 - 12:40

Victor,

I believe the primary will always be used as the source.

HTH,

John

lamav Thu, 07/09/2009 - 12:54

Thats what I think, too...but I need it confirmed...maybe someone can set it up in their lab right quick....I dont have acces to mine now and dont do the nips, dips or whatever that virtual service is called.

Correct Answer
Jon Marshall Thu, 07/09/2009 - 13:39

Victor

Had a few spare minutes :-)

It uses the primary address of the interface ie. in your example 10.10.10.1

With a secondary address it still uses the primary address of the interface ie. 10.10.10.1

Jon

lamav Thu, 07/09/2009 - 13:57

Johnny Boy!!!!!

What it is, homeboy???

Long time...

You ARE the best, papi chulo....

Thanks

Victor

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