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04-02-2018 07:51 AM
04-02-2018 07:51 AM
HP5510 HI DHCP Snooping
have the following scenario:
UBUNTU DHCP Server <-> SW 1 Cisco Catalyst 3750 <-> SW 2 HP 5510 HI <-> SW 3 Allied 280X <-> Windows Client 10.
All switchs are with DHCP snooping enabled.
SW 3 has two interfaces and relay to the dhcp server;
SW 2 has the uplink ports confirmed with dhcp snooping trust;
When I disable dhcp snooping from Sw 2 HP 5510 HI the client receives ip normally (dhcp server sends the message "DHCPACK"). When I enable dhcp snoping on SW 2 the client does not receive ip.
Does anyone have any solutions to this problem?
P.S.
DHCP logs with DHCP snoopoing disabled in SW 2:
Apr 2 10:20:17 ipe dhcpd: DHCPDISCOVER from 50: b7: c3: 40: 5d: b2 (DESKTOP-73G5COG) via 10.10.28.9
Apr 2 10:20:18 ipe dhcpd: DHCPOFFER on 10.10.29.3 to 50: b7: c3: 40: 5d: b2 (DESKTOP-73G5COG) via 10.10.28.9
Apr 2 10:20:18 ipe dhcpd: DHCPREQUEST for 10.10.29.3 (10.15.0.3) from 50: b7: c3: 40: 5d: b2 (DESKTOP-73G5COG) via 10.10.28.9
Apr 2 10:20:18 ipe dhcpd: DHCPACK on 10.10.29.3 to 50: b7: c3: 40: 5d: b2 (DESKTOP-73G5COG) via 10.10.28.9
DHCP Logs with DHCP Snooping Enabled in SW 2:
Apr 2 10:55:01 ipe dhcpd: DHCPDISCOVER from 50: b7: c3: 40: 5d: b2 (DESKTOP-73G5COG) via 10.10.28.9
Apr 2 10:55:01 ipe dhcpd: DHCPOFFER on 10.10.29.3 to 50: b7: c3: 40: 5d: b2 (DESKTOP-73G5COG) via 10.10.28.9
Apr 2 10:55:10 ipe dhcpd: DHCPDISCOVER from 50: b7: c3: 40: 5d: b2 (DESKTOP-73G5COG) via 10.10.28.9
Apr 2 10:55:10 ipe dhcpd: DHCPOFFER on 10.10.29.3 to 50: b7: c3: 40: 5d: b2 (DESKTOP-73G5COG) via 10.10.28.9
Apr 2 10:55:25 ipe dhcpd: DHCPDISCOVER from 50: b7: c3: 40: 5d: b2 (DESKTOP-73G5COG) via 10.10.28.9
Apr 2 10:55:25 ipe dhcpd: DHCPOFFER on 10.10.29.3 to 50: b7: c3: 40: 5d: b2 (DESKTOP-73G5COG) via 10.10.28.9
Apr 2 10:55:58 ipe dhcpd: DHCPDISCOVER from 50: b7: c3: 40: 5d: b2 (DESKTOP-73G5COG) via 10.10.28.9
Apr 2 10:55:58 ipe dhcpd: DHCPOFFER on 10.10.29.3 to 50: b7: c3: 40: 5d: b2 (DESKTOP-73G5COG) via 10.10.28.9
Apr 2 10:56:03 ipe dhcpd: DHCPDISCOVER from 50: b7: c3: 40: 5d: b2 (DESKTOP-73G5COG) via 10.10.28.9
Apr 2 10:56:03 ipe dhcpd: DHCPOFFER on 10.10.29.3 to 50: b7: c3: 40: 5d: b2 (DESKTOP-73G5COG) via 10.10.28.9
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05-16-2018 04:53 PM - edited 05-16-2018 04:56 PM
05-16-2018 04:53 PM - edited 05-16-2018 04:56 PM
Re: HP5510 HI DHCP Snooping
Hello !
Post command output:
display dhcp-snooping trust
and enable debug
debugging dhcp-snooping all
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