
The dhcp server is systemd-networkd, and the dhcp plugin can request an ip but can not renew it. The systemd-networkd just ignore the renew request. ``` 2024/09/14 21:46:00 no DHCP packet received within 10s 2024/09/14 21:46:00 retrying in 31.529038 seconds 2024/09/14 21:46:42 no DHCP packet received within 10s 2024/09/14 21:46:42 retrying in 63.150490 seconds 2024/09/14 21:47:45 98184616c91f15419f5cacd012697f85afaa2daeb5d3233e28b0ec21589fb45a/iot/eth1: no more tries 2024/09/14 21:47:45 98184616c91f15419f5cacd012697f85afaa2daeb5d3233e28b0ec21589fb45a/iot/eth1: renewal time expired, rebinding 2024/09/14 21:47:45 Link "eth1" down. Attempting to set up 2024/09/14 21:47:45 98184616c91f15419f5cacd012697f85afaa2daeb5d3233e28b0ec21589fb45a/iot/eth1: lease rebound, expiration is 2024-09-14 22:47:45.309270751 +0800 CST m=+11730.048516519 ``` Follow the https://datatracker.ietf.org/doc/html/rfc2131#section-4.3.6, following options must not be sent in renew - Requested IP Address - Server Identifier Since the upstream code has been inactive for 6 years, we should switch to another dhcpv4 library. The new selected one is https://github.com/insomniacslk/dhcp. Signed-off-by: Songmin Li <lisongmin@protonmail.com>
26 lines
802 B
Go
26 lines
802 B
Go
package iana
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// EnterpriseID represents the Enterprise IDs as set by IANA
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type EnterpriseID int
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// See https://www.iana.org/assignments/enterprise-numbers/enterprise-numbers for values
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const (
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EnterpriseIDCiscoSystems EnterpriseID = 9
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EnterpriseIDCienaCorporation EnterpriseID = 1271
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EnterpriseIDMellanoxTechnologiesLTD EnterpriseID = 33049
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)
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var enterpriseIDToStringMap = map[EnterpriseID]string{
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EnterpriseIDCiscoSystems: "Cisco Systems",
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EnterpriseIDCienaCorporation: "Ciena Corporation",
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EnterpriseIDMellanoxTechnologiesLTD: "Mellanox Technologies LTD",
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}
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// String returns the vendor name for a given Enterprise ID
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func (e EnterpriseID) String() string {
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if vendor := enterpriseIDToStringMap[e]; vendor != "" {
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return vendor
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}
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return "Unknown"
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}
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