113 lines
4 KiB
Markdown
113 lines
4 KiB
Markdown
# IPWhiteList
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Limiting Clients to Specific IPs
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{: .subtitle }
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IPWhitelist accepts / refuses requests based on the client IP.
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## Configuration Examples
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??? example "File -- Accepts request from defined IP"
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```toml
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[http.middlewares]
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[http.middlewares.test-ipwhitelist.ipWhiteList]
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sourceRange = ["127.0.0.1/32", "192.168.1.7"]
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```
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??? example "Docker -- Accepts request from defined IP"
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```yml
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a-container:
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image: a-container-image
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labels:
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- "traefik.http.middlewares.Middleware9.IPWhiteList.SourceRange=127.0.0.1/32, 192.168.1.7"
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```
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## Configuration Options
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### sourceRange
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The `sourceRange` option sets the allowed IPs (or ranges of allowed IPs).
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### ipStrategy
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The `ipStrategy` option defines two parameters that sets how Traefik will determine the client IP: `depth`, and `excludedIPs`.
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#### ipStrategy.depth
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The `depth` option tells Traefik to use the `X-Forwarded-For` header and take the IP located at the `depth` position (starting from the right).
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!!! note "Examples of Depth & X-Forwaded-For"
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If `depth` was equal to 2, and the request `X-Forwarded-For` header was `"10.0.0.1,11.0.0.1,12.0.0.1,13.0.0.1"` then the "real" client IP would be `"10.0.0.1"` (at depth 4) but the IP used for the whitelisting would be `"12.0.0.1"` (`depth=2`).
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??? note "More examples"
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| `X-Forwarded-For` | `depth` | clientIP |
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|-----------------------------------------|---------|--------------|
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| `"10.0.0.1,11.0.0.1,12.0.0.1,13.0.0.1"` | `1` | `"13.0.0.1"` |
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| `"10.0.0.1,11.0.0.1,12.0.0.1,13.0.0.1"` | `3` | `"11.0.0.1"` |
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| `"10.0.0.1,11.0.0.1,12.0.0.1,13.0.0.1"` | `5` | `""` |
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??? example "File -- Whitelisting Based on `X-Forwarded-For` with `depth=2`"
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```toml
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[http.middlewares]
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[http.middlewares.test-ipwhitelist.ipWhiteList]
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sourceRange = ["127.0.0.1/32", "192.168.1.7"]
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[http.middlewares.test-ipwhitelist.ipWhiteList.ipStrategy]
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depth = 2
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```
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??? example "Docker -- Whitelisting Based on `X-Forwarded-For` with `depth=2`"
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```yml
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a-container:
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image: a-container-image
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labels:
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- "traefik.http.middlewares.testIPwhitelist.ipWhiteList.SourceRange=127.0.0.1/32, 192.168.1.7"
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- "traefik.http.middlewares.testIPwhitelist.ipwhitelist.ipstrategy.depth=2"
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```
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!!! note
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- If `depth` is greater than the total number of IPs in `X-Forwarded-For`, then the client IP will be empty.
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- `depth` is ignored if its value is is lesser than or equal to 0.
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#### ipStrategy.excludedIPs
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`excludedIPs` tells Traefik to scan the `X-Forwarded-For` header and pick the first IP not in the list.
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!!! note "Examples of ExcludedIPs & X-Forwaded-For"
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| `X-Forwarded-For` | `excludedIPs` | clientIP |
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|-----------------------------------------|-----------------------|--------------|
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| `"10.0.0.1,11.0.0.1,12.0.0.1,13.0.0.1"` | `"12.0.0.1,13.0.0.1"` | `"11.0.0.1"` |
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| `"10.0.0.1,11.0.0.1,12.0.0.1,13.0.0.1"` | `"15.0.0.1,13.0.0.1"` | `"12.0.0.1"` |
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| `"10.0.0.1,11.0.0.1,12.0.0.1,13.0.0.1"` | `"10.0.0.1,13.0.0.1"` | `"12.0.0.1"` |
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| `"10.0.0.1,11.0.0.1,12.0.0.1,13.0.0.1"` | `"15.0.0.1,16.0.0.1"` | `"13.0.0.1"` |
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| `"10.0.0.1,11.0.0.1"` | `"10.0.0.1,11.0.0.1"` | `""` |
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!!! important
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If `depth` is specified, `excludedIPs` is ignored.
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??? example "File -- Exclude from `X-Forwarded-For`"
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```toml
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[http.middlewares]
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[http.middlewares.test-ipwhitelist.ipWhiteList]
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[http.middlewares.test-ipwhitelist.ipWhiteList.ipStrategy]
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excludedIPs = ["127.0.0.1/32", "192.168.1.7"]
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```
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??? example "Docker -- Exclude from `X-Forwarded-For`"
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```yml
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a-container:
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image: a-container-image
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labels:
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- "traefik.http.middlewares.testIPwhitelist.ipwhitelist.ipstrategy.excludedIPs=127.0.0.1/32, 192.168.1.7"
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```
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