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Maniphest T2506

DHCPv6-PD add prefix hint CLI option
Closed, ResolvedPublicFEATURE REQUEST
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Description

Some ISPs (e.g. Comcast in Australia) only delegate a /64 by default. You have to explicitly ask for a /60 prefix (see discussion in T421).

Add CLI node to „help“ the dhcp client to request an appropriate size.

Details

Version
-
Is it a breaking change?
Unspecified (possibly destroys the router)
Issue type
Feature (new functionality)

Related Objects

Event Timeline

c-po created this task.May 23 2020, 9:38 PM
c-po claimed this task.
c-po triaged this task as Normal priority.
c-po edited a custom field.
jack9603301 subscribed.May 24 2020, 3:52 AM
c-po added a comment.EditedMay 24 2020, 10:06 AM

Guess the CLI needs a change here as this requirement was overseen. It could look something like this (note that PPPoE can be replaced by any other interface), need to work out the details.

+pppoe pppoe0 {
+    authentication {
+        password vyos
+        user vyos
+    }
+    dhcpv6-options {
+        prefix-delegation {
+            interface eth1 {
+                address 1
+                sla-id 0
+                sla-len 5
+            }
+            length 60
+        }
+    }
+    ipv6 {
+        address {
+            autoconf
+        }
+        enable
+    }
+    mtu 1400
+    source-interface eth0.202
+    vrf black
+}
c-po added a comment.May 24 2020, 11:49 AM

I‘m asking myself if length should be specified as decimal number or as ::/60 prefix?

pasik subscribed.May 24 2020, 2:48 PM
jack9603301 added a comment.May 24 2020, 8:49 PM

If this field is only the len, of prefix, there is no need to use prefix writing.

c-po changed the task status from Open to In progress.May 26 2020, 3:11 PM
c-po edited a custom field.
c-po mentioned this in T421: Add Pv6 prefix delegation support.May 26 2020, 3:20 PM
c-po mentioned this in rVYOSONEXd5b58517f883: dhcpv6-pd: pppoe: T2506: restructure CLI.May 26 2020, 6:54 PM
c-po mentioned this in rVYOSONEX7dddfa338800: dhcpv6-pd: T2506: add option to request specific prefix length.
c-po mentioned this in rVYOSONEX8ff6d2ed6025: dhcpv6-pd: T2506: use common dictionary definition for config parameters.
c-po mentioned this in rVYOSONEX825059e83237: Merge branch 'dhcpv6-pd-t2506' of github.com:c-po/vyos-1x into current.
c-po closed this task as Resolved.May 26 2020, 6:59 PM
c-po mentioned this in rVYOSONEXfbe88e561c69: dhcpv6-pd: pppoe: T2506: remove debug print statement.May 27 2020, 5:36 AM
c-po mentioned this in rVYOSONEXdf751f6ed14e: dhcpc6-pd: T2506: bugfix config rendering on non PPPoE interfaces.May 28 2020, 3:23 PM
c-po mentioned this in rVYOSONEX9ff733fc5336: dhcp: dhcpv6: T2506: add client restart to op-mode.
c-po mentioned this in rVYOSONEX9f9427bc8ed1: dhcp: dhcpv6: T2506: add top level help text for "renew".May 29 2020, 5:51 PM
c-po moved this task from Need Triage to Finished on the VyOS 1.3 Equuleus board.Jun 2 2020, 5:49 PM
dsummers mentioned this in T2551: DHCPv6-PD prefix length not being set in config file.Jun 5 2020, 8:08 AM
erkin set Issue type to Feature (new functionality).Aug 30 2021, 6:01 AM
erkin removed a subscriber: Global Notifications.
syncer edited projects, added VyOS 1.3 Equuleus (1.3.0); removed VyOS 1.3 Equuleus.Aug 30 2022, 2:01 PM
syncer moved this task from Need Triage to Finished on the VyOS 1.3 Equuleus (1.3.0) board.