Unable to use multiple VIPs for one peer

[brezuch]

Hi,

I am getting the error while trying to add more than one IP address:

gocast[2196526]: F0205 15:10:26.962984 2196526 config.go:57] FATAL: Unable to decode yaml: yaml: unmarshal errors: gocast[2196526]: line 29: cannot unmarshal !!seq into string

Configured like this:

apps:
  - name: streamer_ott
    vip:
      - 10.10.10.1/32
      - 10.10.10.2/32
    vip_config:
.....
...

[mayuresh82]

This is unsupported at the moment. What is your use case for announcing multiple VIPs for the same application ?

[brezuch]

Gocast is deployed for streaming HLS on multiple HW nodes (CDN) inside partners networks.

In Our application one any-cast loopback is advertised for streaming.
The issue is that lot of ISP networks in our region is using Carrier-grade NAT for limited IPv4 address space. With such clients, the source (clients) IP can be different for server (CDN node) installed inside partners network (private IP space) and different for middleware server installed outside partner network (public IP after NAT is applied for clients). This brings problem for authentication mechanism used for secure the streaming.

Simple solution for me is to advertise one more any-cast IP inside partner ISP network (middleware IP) and to use nginx proxy.

So the middleware and CDN will get same private end user source IP with no need to NAT.

The nginx in this case is used for streaming and for middleware - one application (one HTTP 80/443 port) but 2 IPs.

[mayuresh82]

as a workaround, are you able to define the 2 VIPs as 2 separate apps for now ? Something like this:

apps:
  - name: streamer_ott
    vip: 10.10.10.1/32
    vip_config: 

  - name: streamer_ott_private
     vip: 10.10.10.2/32
     vip_config: