---
title: "Details"
url: "https://manual.firstb2b.com/2/firstb2b-as2-details/15/details"
---

# FirstB2B AS2 Details

#### AS2 ID: 
celosia

#### Inbound URLs: 
http://as2.firstb2b.net:10080 OR https://as2.firstb2b.net:10443
#### Ports: 
10080 (HTTP) or 10443 (HTTPS)

10081 (HTTP MDN Async) or 10444 (HTTPS MDN Async)
#### IP address to safe list with your firewall:

18.170.239.112

#### Supported Digests
- SHA1
- SHA256
- SHA384
- SHA512
- RC4
- MD5

##### ***FirstB2B Recommends the following digests for stronger security***
- SHA256
- SHA384
- SHA512

#### Supported Encryption
- 3DES
- CAST5
- RC2_CBC
- AES128
- AES192
- AES256

##### ***FirstB2B Recommends the following encryption algorithms for stronger security***
- AES128
- AES192
- AES256
 
##### Document Reference: FirstB2B AS2 Details
##### Classification: Public