OpenForum RSS: cisco ip unnambered + opt82 relay

cisco ip unnambered + opt82 relay (tvv)

Fri, 11 Sep 2020 08:58:19 GMT

>[�� ]
> range 192.168.27.2 192.168.27.5;
> allow unknown-clients;
> }
> � �� ip �� . �� , ��
> �� DHCP �� .
> = � �� dhcp relay , a dhcp snooping, ��
> � �� dhcp_local_relay =
> �� dhcp snooping - �� IP ��
> (��) DHCP ��
> �� dhcp snooping �� D-link ?

�� , � �� dhcp �� unnambered ��.
dhcp(172.10.0.2)<-->cisco 4948(�� dhcp 172.10.0.1, �� 10.255.255.5)<---> �� 4948 ip unnambered (�� 10.255.255.6, ip unnam)<-->�� . �� ? �� quidway 2300 �� , �� . �� ?

cisco ip unnambered + opt82 relay (NetEye)

Fri, 11 Sep 2020 05:47:41 GMT

�� -

pool {
max-lease-time 300;
range 192.168.27.2 192.168.27.5;
allow unknown-clients;
}

� �� ip �� . �� , �� DHCP �� .

= � �� dhcp relay , a dhcp snooping, �� dhcp_local_relay =
�� dhcp snooping - �� IP �� (��) DHCP ��

�� dhcp snooping �� D-link ?

cisco ip unnambered + opt82 relay (tvv)

Wed, 09 Sep 2020 06:57:23 GMT

>[�� ]
>> �� (
> �� . �� DHCP-relay �� D-Link, �� D-Link ��
> �� DHCP � �� . �
> �� D-Link, � �isco. ��
> ��. � �� D-Link �� L2 ��
> �� .
> � �� DHCP �� ? �� ?
> �� "�� ", ��
> �� DHCP ��, � �� -��
> ��? �� ?

Andrey, �� dhcp relay , a dhcp snooping, �� dhcp_local_relay
��
dhcp server (172.10.0.2)--cisco 4948(172.10.0.1) �� 10.255.255.5---cisco � ip unnambered 10.255.255.6 (�� dhcp snooping, ip helper-address)--�� 172.18.2.25 (2 vlana, 1-�� 2� ��)

cisco ip unnambered + opt82 relay (Andrey)

Wed, 09 Sep 2020 05:56:05 GMT

>[�� ]
> �� , �� .
> �� dhcp_local_relay � dlink des 3200
> Command: show dhcp_local_relay
> DHCP/BOOTP Local Relay Status
> : Enabled
> DHCP/BOOTP Local Relay VID List :
> 4001
> DHCP Relay Agent Information Option 82 Circuit ID : Default
> DHCP Relay Agent Information Option 82 Remote ID : E8-CC-18-CE-DC-00
> �� (

�� . �� DHCP-relay �� D-Link, �� D-Link �� DHCP � �� . � �� D-Link, � �isco. �� . � �� D-Link �� L2 �� .

� �� DHCP �� ? �� ?

�� "�� ", �� DHCP ��, � �� -�� ? �� ?

cisco ip unnambered + opt82 relay (tvv)

Tue, 08 Sep 2020 17:20:31 GMT

>> dhcpd: DHCPDISCOVER from 64:ee:b7:14:0a:1e via 192.168.27.1: network: no free leases
> no free leases �� , ��
> �� IP ��.

dhcpd.conf

subnet 192.168.27.0 netmask 255.255.255.0 {
option domain-name-servers 8.8.4.4, 8.8.8.8;
option subnet-mask 255.255.255.0;
option routers 192.168.27.1;
max-lease-time 1296000;
default-lease-time 604800;
include "/etc/dhcp/192.168.27.0.conf";
}

cat /etc/dhcp/192.168.27.0.conf

class "inv_sw_192.168.27.2" {
match if (
binary-to-ascii(16, 8, ":", suffix(option agent.remote-id, 6)) = "e8:cc:18:ce:dc:0"
and
binary-to-ascii(10, 8, "", suffix(option agent.circuit-id, 1)) = "2"
);
}
pool {
range 192.168.27.2;
allow members of "inv_sw_192.168.27.2";
}
�� , �� .
�� dhcp_local_relay � dlink des 3200
Command: show dhcp_local_re

cisco ip unnambered + opt82 relay (NetEye)

Tue, 08 Sep 2020 13:45:52 GMT

> dhcpd: DHCPDISCOVER from 64:ee:b7:14:0a:1e via 192.168.27.1: network: no free leases

no free leases �� , �� IP ��.

cisco ip unnambered + opt82 relay (tvv)

Fri, 04 Sep 2020 06:20:23 GMT

>[�� ]
> vlan 4002
> !
> int vlan 4001
> ip helper-address 172.x.x.x
> ip unnumbered lo1
> ! �� ip address 192.168.0.1 255.255.255.0
> !
> int vlan 4002
> ip address 172.x.x.1 255.255.255.0
> !

�� Ip
�� dhcp
cat /etc/dhcp/192.168.27.0.conf

class "inv_sw_192.168.27.2" {
match if (
binary-to-ascii(16, 8, ":", suffix(option agent.remote-id, 6)) = "e8:cc:18:ce:dc:0"
and
binary-to-ascii(10, 8, "", suffix(option agent.circuit-id, 1)) = "2"
);
}
pool {
range 192.168.27.2;
allow members of "inv_sw_192.168.27.2";
}

cisco
interface Loopback5
ip address 192.168.27.1 255.255.255.0
no ip redirects
no ip unreachables
vlan 4001
interface Vlan4001
ip unnumbered Loopback5
ip helper-address 172.10.0.2
�� dhcp ��
dhcpd: DHCPDISCOVER from 64:ee:b7:14:0a:1e via 192.168.27.1: network: no free leases

cisco ip unnambered + opt82 relay (Andrey)

Wed, 02 Sep 2020 14:45:38 GMT

>[�� ]
>>> : Enabled
>>> DHCP/BOOTP Local Relay VID List :
>>> 4001
>> �� DHCP �� D-Link �� ip helper-address �� Cisco?
>> �� D-Link � �� dhcp relay?
>> �� IP �� ?
> ��, �� , ��
> ��. �� 4001
> �� ip �� dhcp ��, ��
> ��?

��.
��
!
vlan 4001
!
vlan 4002
!
int vlan 4001
ip helper-address 172.x.x.x
ip unnumbered lo1 ! �� ip address 192.168.0.1 255.255.255.0
!
int vlan 4002
ip address 172.x.x.1 255.255.255.0
!

cisco ip unnambered + opt82 relay (tvv)

Wed, 02 Sep 2020 08:58:58 GMT

>[�� ]
>> ��
>> DES-3200-28:admin#show dhcp_local_relay
>> Command: show dhcp_local_relay
>> DHCP/BOOTP Local Relay Status
>> : Enabled
>> DHCP/BOOTP Local Relay VID List :
>> 4001
> �� DHCP �� D-Link �� ip helper-address �� Cisco?
> �� D-Link � �� dhcp relay?
> �� IP �� ?

��, �� , �� . �� 4001 �� ip �� dhcp ��, �� ?