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тАО03-11-2009 12:55 AM
тАО03-11-2009 12:55 AM
VLAN isolation and IP routing
In one of our remote offices we have a 2650 with IP ROUTING and the following VLAN defined:
vlan 1
name "DEFAULT_VLAN"
untagged 49
ip address 192.168.1.30 255.255.255.0
exit
vlan 2
name "Foo"
untagged 1-44,50
ip address 192.168.4.33 255.255.255.0
exit
vlan 4
name "Bar"
untagged 45-48
ip address 192.168.254.32 255.255.255.0
exit
No default route is defined.
With this configuration, everyone on each one of the VLANs with the appropriate IP as gateway (i.e. 192.168.4.33) can reach every other VLAN.
Is there any way to isolate VLAN 1 from the other VLANs?
vlan 1
name "DEFAULT_VLAN"
untagged 49
ip address 192.168.1.30 255.255.255.0
exit
vlan 2
name "Foo"
untagged 1-44,50
ip address 192.168.4.33 255.255.255.0
exit
vlan 4
name "Bar"
untagged 45-48
ip address 192.168.254.32 255.255.255.0
exit
No default route is defined.
With this configuration, everyone on each one of the VLANs with the appropriate IP as gateway (i.e. 192.168.4.33) can reach every other VLAN.
Is there any way to isolate VLAN 1 from the other VLANs?
3 REPLIES 3
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тАО03-11-2009 01:05 AM
тАО03-11-2009 01:05 AM
Re: VLAN isolation and IP routing
Hi,
if vlan1 only needs to communicate with vlan1 just remove the ip address of vlan 1.
the other possibility is to use ACL's, but i don't think the 2650 switch does support ACL's.
hth
alex
if vlan1 only needs to communicate with vlan1 just remove the ip address of vlan 1.
the other possibility is to use ACL's, but i don't think the 2650 switch does support ACL's.
hth
alex
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тАО03-11-2009 06:28 AM
тАО03-11-2009 06:28 AM
Re: VLAN isolation and IP routing
you can write
config#managemet-vlan 1
commad on switch
vlan 1 isolate all other vlan
config#managemet-vlan 1
commad on switch
vlan 1 isolate all other vlan
cenk
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тАО03-11-2009 06:36 AM
тАО03-11-2009 06:36 AM
Re: VLAN isolation and IP routing
or
you can use filter port config
swtest(config)# filter source-port 1-48,50 drop 49
ports 1-48 and 50 not connected with int 49
you can use filter port config
swtest(config)# filter source-port 1-48,50 drop 49
ports 1-48 and 50 not connected with int 49
cenk
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