10-15-2014 01:23 PM
Hi,
I am new to VLANs but I did spend significant time trying to find an answer here or on the Net.
Situation:
I have the RV180 VPN K9-G5 with Firmware 1.0.4.14 connected to a cable modem via the RV180s-WAN-port. I am trying to create 3 VLANs which don´t see each other´s machines but can all access the Internet. I didn´t change any settings other than setting up these VLANs. (to be complete: To Port 1 a WLAN-Router is connected which is configured to be a WLAN-Accesspoint only (no dhcp, ip-sharing, nat, firewall), so this machine shouldn´t interfere).
Accessing the Internet from VLAN30 works fine.
Problems:
connected to Port-2=VLAN30 on my admin-PC....
a) ...I can see all Hosts on all VLANs (using a portscanner). Why not only the Ips of VLAN 30?
b) ... all machines in all VLANs have IPs 192.168.1.* (see admin-PC attached). Why not 192.168.1.4.* for my admin-PC?
VLAN ID | Description | Inter VLAN Routing | Device Management | Port 1 | Port 2 | Port 3 | Port 4 | ||
1 | Default | Disabled | Enabled | Untagged | Untagged | Tagged | Tagged | ||
10 | Norbert | Disabled | Disabled | Excluded | Excluded | Untagged | Excluded | ||
20 | Jürgen | Disabled | Disabled | Excluded | Excluded | Excluded | Untagged | ||
30 | Kevin | Enabled | Enabled | Tagged | Tagged | Excluded | Excluded | ||
IPv4 Address 192.168.1.1 / 255.255.255.0
IPv6 Address
DHCP Server Enabled
DHCP Relay Disabled
DHCPv6 Server IPv6 is disabled
VLAN ID | Description | Inter VLAN Routing | Device Management | Port 1 | Port 2 | Port 3 | Port 4 | ||
1 | Default | Disabled | Enabled | Untagged | Untagged | Tagged | Untagged | ||
10 | Norbert | Disabled | Enabled | Excluded | Excluded | Untagged | Excluded | ||
20 | Jürgen | Disabled | Disabled | Excluded | Excluded | Excluded | Tagged | ||
30 | Kevin | Enabled | Enabled | Tagged | Tagged | Excluded | Excluded |
next test:
To find out where my 192.168.1.*-IPs are coming from I then numbered all "Domains" in all Subnets as "Cisco1" for VLAN1 and "Cisco10" for VLAN10 etc.. After ipconfig/renew I could see that my IPs are coming from VLAN-ID 1 by checking the DNS-Suffix.
But even when I deactivated the IPV4-LAN-DHCP-Server I receive IPs from 192.168.1.*-IPs. Why?
Thanks so much. Probably I am lacking some basic understanding.
Kevin
10-18-2014 02:18 AM
I solved the Problem. It was due to the DHCP-Lease time. After lowering it to an hours or releasing the ip-address the new IP addresses came through.
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