All,
So, we have our Nexus as our default gateway (101.1) and the default VLAN1 is setup with two subnets 101.X and 102.X. The DHCP server is using a superscope setup to accomodate the overflow of devices requesting IPs on 101, so when 101 is consumed persons are able to obtain a 102.X IP address. The setup is basic on superscope.
The issue is some times the routing to the firewall with a 102.X is not always 100%. Somedays all goes well and the 102 subnet is routed out to the firewall and its a good day. However, such as today a 102.X address is not routing as it did 24 hours ago. I am perplexed as to why this is behaving unpredicatable.
I would really appreciate input as to why so unpredicatble, and suggested solutions. I can post config, if it helps.
Here is running-config for VLAN1 to show the 102 as secondary address to VLAN1.
interface Vlan1
no shutdown
description Shannon Road Main VLAN
no ip redirects
ip address 192.168.101.1/24
ip address 192.168.102.1/24 secondary
ip router eigrp 1
ip dhcp relay address 192.168.101.5
Running-config for VLANs
show vlan
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Po10, Eth1/1, Eth1/2, Eth1/3
Eth1/4, Eth1/5, Eth1/6, Eth1/7
Eth1/8, Eth1/9, Eth1/10, Eth1/11
Eth1/12, Eth1/13, Eth1/14
Eth1/15, Eth1/16, Eth1/19
Eth1/20, Eth1/21, Eth1/22
Eth1/23, Eth1/24, Eth1/25
Eth1/26, Eth1/27, Eth1/28
Eth100/1/1, Eth100/1/2
Eth100/1/3, Eth100/1/4
Eth100/1/5, Eth100/1/6
Eth100/1/7, Eth100/1/8
Eth100/1/9, Eth100/1/10
Eth100/1/11, Eth100/1/12
Eth100/1/13, Eth100/1/14
Eth100/1/15, Eth100/1/16
Eth100/1/17, Eth100/1/18
Eth100/1/19, Eth100/1/20
Eth100/1/21, Eth100/1/22
Eth100/1/23, Eth100/1/24
[7m--More-- [27m
Eth100/1/25, Eth100/1/26
Eth100/1/27, Eth100/1/28
Eth100/1/29, Eth100/1/30
Eth100/1/31, Eth100/1/32
Eth100/1/33, Eth100/1/34
Eth100/1/35, Eth100/1/36
Eth100/1/37, Eth100/1/38
Eth100/1/39, Eth100/1/40
Eth100/1/41, Eth100/1/42
Eth100/1/43, Eth100/1/44
Eth100/1/45, Eth100/1/46
Eth100/1/47, Eth100/1/48
99 VLAN0099 active Po10, Eth1/1, Eth1/2, Eth1/3
Eth1/4, Eth100/1/48
102 VLAN0102 active Po10, Eth1/1, Eth1/2, Eth1/3
Eth1/4, Eth100/1/48
103 VLAN0103 active Po10, Eth1/1, Eth1/2, Eth1/3
Eth1/4, Eth100/1/48
104 VLAN0104 active Po10, Eth1/1, Eth1/2, Eth1/3
Eth1/4, Eth100/1/48
105 VLAN0105 active Po10, Eth1/1, Eth1/2, Eth1/3
Eth1/4, Eth100/1/48
106 VLAN0106 active Po10, Eth1/1, Eth1/2, Eth1/3
[7m--More-- [27m
Eth1/4, Eth100/1/48
107 VLAN0107 active Po10, Eth1/1, Eth1/2, Eth1/3
Eth1/4, Eth100/1/48
1002 fddi-default suspended Po10, Eth1/1, Eth1/2, Eth1/3
Eth1/4, Eth100/1/48
1003 token-ring-default suspended Po10, Eth1/1, Eth1/2, Eth1/3
Eth1/4, Eth100/1/48
1004 fddinet-default suspended Po10, Eth1/1, Eth1/2, Eth1/3
Eth1/4, Eth100/1/48
1005 trnet-default suspended Po10, Eth1/1, Eth1/2, Eth1/3
Eth1/4, Eth100/1/48
VLAN Type Vlan-mode
---- ----- ----------
1 enet CE
99 enet CE
102 enet CE
103 enet CE
104 enet CE
105 enet CE
106 enet CE
107 enet CE
1002 enet CE
[7m--More-- [27m
1003 enet CE
1004 enet CE
1005 enet CE
Remote SPAN VLANs
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