ipsec vpn cisco phone

5 replies
5247 views

Hi,

I have cisco cucm on Head Office and Branch there is phones also

cucm server ip is 10.0.2.10 and phones are head office also in the same network . And I want phones in branch also in the same network ( it 10.0.2.10 )

Can I achieve these using ipsec vpn

How can i do that ?

second question based on the below attachment

can I use 0.0.0.0 as local subnets and remote subnets

Thanks

Screen Shot 2019-0__ at 12_19_58 AM.png

boneyard

Valued Contributor

that is not possible with IPsec VPN.

an IPsec VPN is between different layer 3 networks.

if you really want this you need to create a streched layer 2 network (via vxlan or l2tp or such)

i would advise you to look into just getting your phones working via layer 3, so allow that the cisco pbx can accept phones in other networks.

simsAuthor

Explorer II

Hi,

Why we need tunnel interface for ipsec vpn

Thanks

boneyard

Valued Contributor

do don't need it (there is an alternative), but it is quite useful. easy to route to, easy to built policies.

is there a reason you don't want it?

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