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To subscribe or unsubscribe via the World Wide Web, visit https://lists.isc.org/mailman/listinfo/dhcp-users or, via email, send a message with subject or body 'help' to dhcp-users-requ...@lists.isc.org You can reach the person managing the list at dhcp-users-ow...@lists.isc.org When replying, please edit your Subject line so it is more specific than "Re: Contents of dhcp-users digest..." Today's Topics: 1. Re: multiple relay destinations (glenn.satch...@uniq.com.au) ---------------------------------------------------------------------- Message: 1 Date: Mon, 24 Jul 2023 00:09:46 +1000 From: glenn.satch...@uniq.com.au To: Users of ISC DHCP <dhcp-users@lists.isc.org> Subject: Re: multiple relay destinations Message-ID: <5b057956ef89abd051862c35f1110...@uniq.com.au> Content-Type: text/plain; charset="us-ascii"; Format="flowed" I didn't see a reply to this, so here's a suggestion. dhcrelay and dhcpd listen on the raw ethernet interface, that's why it sees all the vlans as part of the same interface. So to get around this you need a separate physical interface for directing the dhcp requests to each dhcp server. So if you could add another interface, say eth2, and configure eth2.900 then you could tell dhcrelay to route dhcp requests on eth1 to dhcp server 1 and eth2 to dhcp server 2. regards, Glenn On 2023-07-07 04:36, Gregory Malsack wrote: > Hello All, > > I'm running isc-dhcrelay-4.4.3-P1 on an alpine linux router for a > remote office to connect to our offices via a vpn. Currently we have > eth0 on the internet, eth1 with no ip, then various vlans eth1.86 > eth1.87 eth1.900 and so on. From what I can tell, isc-dhcrelay only > really listens on eth1, thus all of the vlan interface dhcp requests > are sent upstream to the dhcrelay server listed in the config file. > > The problem I have is that eth1.86 and eth1.87 need to go to dhcp > server 1 upstream and eth1.900 needs to go to dhcp server 2 upstream. > If dhcrelay can do this great, but I don't know how to do this. I don't > have eth1.900 listed in the iface directive, but that doesn't seem to > matter because it's relaying dhcp requests on vlan anyway. > > Can someone help? > > Thanks! > Greg > > Confidentiality Notice: Any materials and information enclosed on or > with this electronic document are private and confidential and are the > property of this sender. The email and the information it may contain > is privileged and intended only for the use of the individual(s) or > entity(ies) named above. All other use is strictly prohibited. If you > are not the intended recipient, be advised that any unauthorized > disclosure, copying, distribution or the taking of any action in > reliance on the content is strictly prohibited. If you have received > this email or document(s) in error, please notify us immediately to > arrange for the return of the document(s). -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://lists.isc.org/pipermail/dhcp-users/attachments/20230724/78851786/attachment-0001.htm> -------------- next part -------------- A non-text attachment was scrubbed... Name: blocked.gif Type: image/gif Size: 118 bytes Desc: not available URL: <https://lists.isc.org/pipermail/dhcp-users/attachments/20230724/78851786/attachment-0001.gif> ------------------------------ Subject: Digest Footer _______________________________________________ ISC funds the development of this software with paid support subscriptions. Contact us at https://www.isc.org/contact/ for more information. dhcp-users mailing list dhcp-users@lists.isc.org https://lists.isc.org/mailman/listinfo/dhcp-users ------------------------------ End of dhcp-users Digest, Vol 176, Issue 7 ******************************************