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Fix info about bip and fixed-cidr keys (#5268)

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Misty Stanley-Jones 2017-11-09 16:18:02 -08:00 committed by GitHub
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12
engine/userguide/networking/default_network/custom-docker0.md
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@ -34,7 +34,7 @@ following settings to configure the default bridge network:
```json ```json
{ {
"bip": "192.168.1.5/24", "bip": "192.168.1.5/24",
"fixed-cidr": "10.20.0.0/16", "fixed-cidr": "192.168.1.5/25",
"fixed-cidr-v6": "2001:db8::/64", "fixed-cidr-v6": "2001:db8::/64",
"mtu": 1500, "mtu": 1500,
"default-gateway": "10.20.1.1", "default-gateway": "10.20.1.1",
@ -53,11 +53,11 @@ each:
- `--fixed-cidr=CIDR` and `--fixed-cidr-v6=CIDRv6`: restrict the IP range from - `--fixed-cidr=CIDR` and `--fixed-cidr-v6=CIDRv6`: restrict the IP range from
the `docker0` subnet, using standard CIDR notation. For example: the `docker0` subnet, using standard CIDR notation. For example:
`172.16.1.0/28`. This range must be an IPv4 range for fixed IPs, such as `172.16.1.0/28`. This range must be an IPv4 range for fixed IPs, and must
`10.20.0.0/16`, and must be a subset of the bridge IP range (`docker0` or set be a subset of the bridge IP range (`docker0` or set
using `--bridge`). For example, with `--fixed-cidr=192.168.1.0/25`, IPs for using `--bridge` or the `bip` key in the `daemon.json` file). For example,
your containers will be chosen from the first half of addresses included in with --fixed-cidr=192.168.1.0/25, IPs for your containers will be chosen from
the `192.168.1.0/24` subnet. the first half of addresses included in the 192.168.1.0/24 subnet.
- `--mtu=BYTES`: override the maximum packet length on `docker0`. - `--mtu=BYTES`: override the maximum packet length on `docker0`.